31321112002130 has 32 divisors (see below), whose sum is σ = 56939361229440. Its totient is φ = 12404180799360.

The previous prime is 31321112002057. The next prime is 31321112002153. The reversal of 31321112002130 is 3120021112313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29641886 + ... + 30680345.

It is an arithmetic number, because the mean of its divisors is an integer number (1779355038420).

Almost surely, 2^{31321112002130} is an apocalyptic number.

31321112002130 is a deficient number, since it is larger than the sum of its proper divisors (25618249227310).

31321112002130 is a wasteful number, since it uses less digits than its factorization.

31321112002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60322754.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31321112002130 its reverse (3120021112313), we get a palindrome (34441133114443).

The spelling of 31321112002130 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred twelve million, two thousand, one hundred thirty".