31212103311130 has 32 divisors (see below), whose sum is σ = 64562494389120. Its totient is φ = 10642169396160.

The previous prime is 31212103311121. The next prime is 31212103311223. The reversal of 31212103311130 is 3111330121213.

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, 1231719900 + ... + 1231745239.

It is an arithmetic number, because the mean of its divisors is an integer number (2017577949660).

Almost surely, 2^{31212103311130} is an apocalyptic number.

31212103311130 is an abundant number, since it is smaller than the sum of its proper divisors (33350391077990).

31212103311130 is a wasteful number, since it uses less digits than its factorization.

31212103311130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463465334.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31212103311130 its reverse (3111330121213), we get a palindrome (34323433432343).

The spelling of 31212103311130 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, three hundred eleven thousand, one hundred thirty".