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1311430230342 = 232175164782981
BaseRepresentation
bin10011000101010111010…
…101010100000101000110
311122101000211100022112200
4103011113111110011012
5132441302114332332
62442243541055330
7163514315014161
oct23052725240506
94571024308480
101311430230342
114661a11a3451
121921b73b7546
139688a1b914b
144768b64cad8
15241a764a17c
hex13157554146

1311430230342 has 48 divisors (see below), whose sum is σ = 3008669743872. Its totient is φ = 411416167680.

The previous prime is 1311430230337. The next prime is 1311430230347. The reversal of 1311430230342 is 2430320341131.

It is a happy number.

1311430230342 is a `hidden beast` number, since 1 + 3 + 1 + 14 + 302 + 3 + 0 + 342 = 666.

It is an interprime number because it is at equal distance from previous prime (1311430230337) and next prime (1311430230347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311430230347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15762492 + ... + 15845472.

It is an arithmetic number, because the mean of its divisors is an integer number (62680619664).

Almost surely, 21311430230342 is an apocalyptic number.

1311430230342 is an abundant number, since it is smaller than the sum of its proper divisors (1697239513530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311430230342 is a wasteful number, since it uses less digits than its factorization.

1311430230342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134653 (or 134650 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1311430230342 its reverse (2430320341131), we get a palindrome (3741750571473).

The spelling of 1311430230342 in words is "one trillion, three hundred eleven billion, four hundred thirty million, two hundred thirty thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 51647 82981 103294 154941 165962 248943 309882 464823 497886 746829 877999 929646 1410677 1493658 1755998 2633997 2821354 4232031 5267994 7901991 8464062 12696093 15803982 25392186 4285719707 8571439414 12857159121 25714318242 38571477363 72857235019 77142954726 145714470038 218571705057 437143410114 655715115171 1311430230342