31121003111130 has 48 divisors (see below), whose sum is σ = 80945983104480. Its totient is φ = 8295716212704.

The previous prime is 31121003111113. The next prime is 31121003111189. The reversal of 31121003111130 is 3111130012113.

31121003111130 is a `hidden beast` number, since 3 + 11 + 210 + 0 + 311 + 1 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66807232 + ... + 67271451.

It is an arithmetic number, because the mean of its divisors is an integer number (1686374648010).

Almost surely, 2^{31121003111130} is an apocalyptic number.

31121003111130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31121003111130 is an abundant number, since it is smaller than the sum of its proper divisors (49824979993350).

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

31121003111130 is a wasteful number, since it uses less digits than its factorization.

31121003111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134081275 (or 134081272 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 31121003111130 its reverse (3111130012113), we get a palindrome (34232133123243).

The spelling of 31121003111130 in words is "thirty-one trillion, one hundred twenty-one billion, three million, one hundred eleven thousand, one hundred thirty".