31120011000030 has 32 divisors (see below), whose sum is σ = 74963627993088. Its totient is φ = 8268047200800.

The previous prime is 31120010999977. The next prime is 31120011000031. The reversal of 31120011000030 is 3000011002113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120011000031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1913891686 + ... + 1913907945.

It is an arithmetic number, because the mean of its divisors is an integer number (2342613374784).

Almost surely, 2^{31120011000030} is an apocalyptic number.

31120011000030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31120011000030 is an abundant number, since it is smaller than the sum of its proper divisors (43843616993058).

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

31120011000030 is a wasteful number, since it uses less digits than its factorization.

31120011000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827799912.

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

Adding to 31120011000030 its reverse (3000011002113), we get a palindrome (34120022002143).

The spelling of 31120011000030 in words is "thirty-one trillion, one hundred twenty billion, eleven million, thirty", and thus it is an aban number.