31120011300 has 432 divisors, whose sum is σ = 111740848128. Its totient is φ = 6546278400.

The previous prime is 31120011271. The next prime is 31120011313. The reversal of 31120011300 is 311002113.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 28523755 + ... + 28524845.

Almost surely, 2^31120011300 is an apocalyptic number.

31120011300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31120011300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55870424064).

31120011300 is an abundant number, since it is smaller than the sum of its proper divisors (80620836828).

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

31120011300 is a wasteful number, since it uses less digits than its factorization.

31120011300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1172 counting only the distinct ones).

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

Adding to 31120011300 its reverse (311002113), we get a palindrome (31431013413).

The spelling of 31120011300 in words is "thirty-one billion, one hundred twenty million, eleven thousand, three hundred".