31311310323011 has 8 divisors (see below), whose sum is σ = 31319825796000. Its totient is φ = 31302795958720.

The previous prime is 31311310323001. The next prime is 31311310323023. The reversal of 31311310323011 is 11032301311313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31311310323011 - 2¹⁰ = 31311310321987 is a prime.

It is a super-2 number, since 2×31311310323011² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311310323001) 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, 57860015 + ... + 58398663.

It is an arithmetic number, because the mean of its divisors is an integer number (3914978224500).

Almost surely, 2^{31311310323011} is an apocalyptic number.

31311310323011 is a deficient number, since it is larger than the sum of its proper divisors (8515472989).

31311310323011 is an equidigital number, since it uses as much as digits as its factorization.

31311310323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554349.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31311310323011 its reverse (11032301311313), we get a palindrome (42343611634324).

The spelling of 31311310323011 in words is "thirty-one trillion, three hundred eleven billion, three hundred ten million, three hundred twenty-three thousand, eleven".