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1031112302231 = 11181517886641
BaseRepresentation
bin11110000000100110001…
…01010001111010010111
310122120110222201010200002
433000103011101322113
5113343204222132411
62105404135041515
7134331631646354
oct17002305217227
93576428633602
101031112302231
11368324017070
12147a0551029b
1376305c2b02b
1437c984b362b
151bc4cd5633b
hexf013151e97

1031112302231 has 8 divisors (see below), whose sum is σ = 1131064426128. Its totient is φ = 932195952000.

The previous prime is 1031112302201. The next prime is 1031112302251. The reversal of 1031112302231 is 1322032111301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031112302231 - 26 = 1031112302167 is a prime.

It is a super-2 number, since 2×10311123022312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031112302201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258941330 + ... + 258945311.

It is an arithmetic number, because the mean of its divisors is an integer number (141383053266).

Almost surely, 21031112302231 is an apocalyptic number.

1031112302231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031112302231 is a deficient number, since it is larger than the sum of its proper divisors (99952123897).

1031112302231 is a wasteful number, since it uses less digits than its factorization.

1031112302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517886833.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031112302231 its reverse (1322032111301), we get a palindrome (2353144413532).

The spelling of 1031112302231 in words is "one trillion, thirty-one billion, one hundred twelve million, three hundred two thousand, two hundred thirty-one".

Divisors: 1 11 181 1991 517886641 5696753051 93737482021 1031112302231