31200230312112 has 40 divisors (see below), whose sum is σ = 84842731552960. Its totient is φ = 9852704308800.

The previous prime is 31200230312063. The next prime is 31200230312117. The reversal of 31200230312112 is 21121303200213.

It is not an unprimeable number, because it can be changed into a prime (31200230312117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17105388514 + ... + 17105390337.

It is an arithmetic number, because the mean of its divisors is an integer number (2121068288824).

Almost surely, 2^{31200230312112} is an apocalyptic number.

It is an amenable number.

31200230312112 is an abundant number, since it is smaller than the sum of its proper divisors (53642501240848).

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

31200230312112 is a wasteful number, since it uses less digits than its factorization.

31200230312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34210778881 (or 34210778875 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31200230312112 its reverse (21121303200213), we get a palindrome (52321533512325).

The spelling of 31200230312112 in words is "thirty-one trillion, two hundred billion, two hundred thirty million, three hundred twelve thousand, one hundred twelve".