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1013200232031 = 321331727318079
BaseRepresentation
bin11101011111001110111…
…00001001111001011111
310120212020122222200122200
432233213130021321133
5113100013224411111
62053242513142543
7133126021605351
oct16574734117137
93525218880580
101013200232031
11360772131669
1214444685aa53
137470cca6320
14370796150d1
151b55056b256
hexebe7709e5f

1013200232031 has 24 divisors (see below), whose sum is σ = 1581061198080. Its totient is φ = 621540910656.

The previous prime is 1013200232027. The next prime is 1013200232039. The reversal of 1013200232031 is 1302320023101.

It is not a de Polignac number, because 1013200232031 - 22 = 1013200232027 is a prime.

It is a super-2 number, since 2×10132002320312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1013200231995 and 1013200232013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013200232039) 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, 13621951 + ... + 13696128.

It is an arithmetic number, because the mean of its divisors is an integer number (65877549920).

Almost surely, 21013200232031 is an apocalyptic number.

1013200232031 is a deficient number, since it is larger than the sum of its proper divisors (567860966049).

1013200232031 is a wasteful number, since it uses less digits than its factorization.

1013200232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27318415 (or 27318412 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1013200232031 its reverse (1302320023101), we get a palindrome (2315520255132).

The spelling of 1013200232031 in words is "one trillion, thirteen billion, two hundred million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 3 9 13 39 117 317 951 2853 4121 12363 37089 27318079 81954237 245862711 355135027 1065405081 3196215243 8659831043 25979493129 77938479387 112577803559 337733410677 1013200232031