31130103121122 has 32 divisors (see below), whose sum is σ = 62578781096832. Its totient is φ = 10323609496704.

The previous prime is 31130103121109. The next prime is 31130103121123. The reversal of 31130103121122 is 22112130103113.

It is not an unprimeable number, because it can be changed into a prime (31130103121123) 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, 29387718 + ... + 30428574.

It is an arithmetic number, because the mean of its divisors is an integer number (1955586909276).

Almost surely, 2^{31130103121122} is an apocalyptic number.

31130103121122 is an abundant number, since it is smaller than the sum of its proper divisors (31448677975710).

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

31130103121122 is a wasteful number, since it uses less digits than its factorization.

31130103121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066362.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31130103121122 its reverse (22112130103113), we get a palindrome (53242233224235).

The spelling of 31130103121122 in words is "thirty-one trillion, one hundred thirty billion, one hundred three million, one hundred twenty-one thousand, one hundred twenty-two".