31031010120000 has 280 divisors, whose sum is σ = 111922652061792. Its totient is φ = 7522668800000.

The previous prime is 31031010119999. The next prime is 31031010120001. The reversal of 31031010120000 is 2101013013.

It is an interprime number because it is at equal distance from previous prime (31031010119999) and next prime (31031010120001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031010120001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10434171 + ... + 13074170.

Almost surely, 2^{31031010120000} is an apocalyptic number.

31031010120000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31031010120000 is an abundant number, since it is smaller than the sum of its proper divisors (80891641941792).

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

31031010120000 is a wasteful number, since it uses less digits than its factorization.

31031010120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508387 (or 23508362 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31031010120000 its reverse (2101013013), we get a palindrome (31033111133013).

The spelling of 31031010120000 in words is "thirty-one trillion, thirty-one billion, ten million, one hundred twenty thousand".