31120112030 has 64 divisors (see below), whose sum is σ = 64776112128. Its totient is φ = 10543927680.

The previous prime is 31120111999. The next prime is 31120112039. The reversal of 31120112030 is 3021102113.

It is a super-2 number, since 2×31120112030² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 31120111996 and 31120112014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120112039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3622340 + ... + 3630920.

It is an arithmetic number, because the mean of its divisors is an integer number (1012126752).

Almost surely, 2^31120112030 is an apocalyptic number.

31120112030 is an abundant number, since it is smaller than the sum of its proper divisors (33656000098).

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

31120112030 is a wasteful number, since it uses less digits than its factorization.

31120112030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31120112030 its reverse (3021102113), we get a palindrome (34141214143).

The spelling of 31120112030 in words is "thirty-one billion, one hundred twenty million, one hundred twelve thousand, thirty".