312031101131 has 16 divisors (see below), whose sum is σ = 316761059328. Its totient is φ = 307325340000.

The previous prime is 312031101097. The next prime is 312031101139. The reversal of 312031101131 is 131101130213.

It is a cyclic number.

It is not a de Polignac number, because 312031101131 - 2¹⁰ = 312031100107 is a prime.

It is a super-2 number, since 2×312031101131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312031101139) 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, 78654710 + ... + 78658676.

It is an arithmetic number, because the mean of its divisors is an integer number (19797566208).

Almost surely, 2^312031101131 is an apocalyptic number.

312031101131 is a deficient number, since it is larger than the sum of its proper divisors (4729958197).

312031101131 is a wasteful number, since it uses less digits than its factorization.

312031101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 312031101131 its reverse (131101130213), we get a palindrome (443132231344).

The spelling of 312031101131 in words is "three hundred twelve billion, thirty-one million, one hundred one thousand, one hundred thirty-one".