31310134055311 has 4 divisors (see below), whose sum is σ = 31517485936624. Its totient is φ = 31102782174000.

The previous prime is 31310134055303. The next prime is 31310134055327. The reversal of 31310134055311 is 11355043101313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31310134055311 - 2³ = 31310134055303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310134055351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103675940430 + ... + 103675940731.

It is an arithmetic number, because the mean of its divisors is an integer number (7879371484156).

Almost surely, 2^{31310134055311} is an apocalyptic number.

31310134055311 is a deficient number, since it is larger than the sum of its proper divisors (207351881313).

31310134055311 is a wasteful number, since it uses less digits than its factorization.

31310134055311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207351881312.

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 31310134055311 its reverse (11355043101313), we get a palindrome (42665177156624).

The spelling of 31310134055311 in words is "thirty-one trillion, three hundred ten billion, one hundred thirty-four million, fifty-five thousand, three hundred eleven".