31234231131000 has 64 divisors (see below), whose sum is σ = 97450801138080. Its totient is φ = 8329128300800.

The previous prime is 31234231130969. The next prime is 31234231131001. The reversal of 31234231131000 is 13113243213.

It is a super-2 number, since 2×31234231131000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234231131001) 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 15 ways as a sum of consecutive naturals, for example, 5205702189 + ... + 5205708188.

Almost surely, 2^{31234231131000} is an apocalyptic number.

31234231131000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31234231131000 is an abundant number, since it is smaller than the sum of its proper divisors (66216570007080).

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

31234231131000 is a wasteful number, since it uses less digits than its factorization.

31234231131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10411410401 (or 10411410387 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31234231131000 its reverse (13113243213), we get a palindrome (31247344374213).

The spelling of 31234231131000 in words is "thirty-one trillion, two hundred thirty-four billion, two hundred thirty-one million, one hundred thirty-one thousand".