311231011121013 has 64 divisors (see below), whose sum is σ = 426425700096000. Its totient is φ = 201840460740864.

The previous prime is 311231011121003. The next prime is 311231011121039. The reversal of 311231011121013 is 310121110132113.

It is not a de Polignac number, because 311231011121013 - 2⁶ = 311231011120949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311231011121003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73076074678 + ... + 73076078936.

It is an arithmetic number, because the mean of its divisors is an integer number (6662901564000).

Almost surely, 2^{311231011121013} is an apocalyptic number.

It is an amenable number.

311231011121013 is a deficient number, since it is larger than the sum of its proper divisors (115194688974987).

311231011121013 is a wasteful number, since it uses less digits than its factorization.

311231011121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8394.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 311231011121013 its reverse (310121110132113), we get a palindrome (621352121253126).

The spelling of 311231011121013 in words is "three hundred eleven trillion, two hundred thirty-one billion, eleven million, one hundred twenty-one thousand, thirteen".