31302200112 has 40 divisors (see below), whose sum is σ = 81270393600. Its totient is φ = 10381631040.

The previous prime is 31302200107. The next prime is 31302200117. The reversal of 31302200112 is 21100220313.

It is an interprime number because it is at equal distance from previous prime (31302200107) and next prime (31302200117).

It is a junction number, because it is equal to n+sod(n) for n = 31302200091 and 31302200100.

It is not an unprimeable number, because it can be changed into a prime (31302200117) 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, 1628964 + ... + 1648067.

It is an arithmetic number, because the mean of its divisors is an integer number (2031759840).

Almost surely, 2^31302200112 is an apocalyptic number.

It is an amenable number.

31302200112 is an abundant number, since it is smaller than the sum of its proper divisors (49968193488).

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

31302200112 is a wasteful number, since it uses less digits than its factorization.

31302200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277241 (or 3277235 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31302200112 its reverse (21100220313), we get a palindrome (52402420425).

The spelling of 31302200112 in words is "thirty-one billion, three hundred two million, two hundred thousand, one hundred twelve".