31311021130134 has 16 divisors (see below), whose sum is σ = 62622112673280. Its totient is φ = 10436995307880.

The previous prime is 31311021130121. The next prime is 31311021130139. The reversal of 31311021130134 is 43103112011313.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311021130139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4170099 + ... + 8944929.

It is an arithmetic number, because the mean of its divisors is an integer number (3913882042080).

Almost surely, 2^{31311021130134} is an apocalyptic number.

31311021130134 is an abundant number, since it is smaller than the sum of its proper divisors (31311091543146).

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

31311021130134 is a wasteful number, since it uses less digits than its factorization.

31311021130134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867755.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 31311021130134 its reverse (43103112011313), we get a palindrome (74414133141447).

The spelling of 31311021130134 in words is "thirty-one trillion, three hundred eleven billion, twenty-one million, one hundred thirty thousand, one hundred thirty-four".