31243324102132 has 12 divisors (see below), whose sum is σ = 54676361720260. Its totient is φ = 15621506467776.

The previous prime is 31243324102103. The next prime is 31243324102139. The reversal of 31243324102132 is 23120142334213.

It can be written as a sum of positive squares in 2 ways, for example, as 14523370390116 + 16719953712016 = 3810954^2 + 4089004^2 .

It is a super-2 number, since 2×31243324102132² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31243324102094 and 31243324102103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31243324102139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38443407 + ... + 39247702.

Almost surely, 2^{31243324102132} is an apocalyptic number.

It is an amenable number.

31243324102132 is a deficient number, since it is larger than the sum of its proper divisors (23433037618128).

31243324102132 is a wasteful number, since it uses less digits than its factorization.

31243324102132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77791650 (or 77791648 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31243324102132 its reverse (23120142334213), we get a palindrome (54363466436345).

The spelling of 31243324102132 in words is "thirty-one trillion, two hundred forty-three billion, three hundred twenty-four million, one hundred two thousand, one hundred thirty-two".