31312030120131 has 8 divisors (see below), whose sum is σ = 41754972205584. Its totient is φ = 20871887390720.

The previous prime is 31312030120079. The next prime is 31312030120169. The reversal of 31312030120131 is 13102103021313.

It is a happy number.

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 31312030120131 - 2¹⁴ = 31312030103747 is a prime.

It is a super-2 number, since 2×31312030120131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31312030120098 and 31312030120107.

It is not an unprimeable number, because it can be changed into a prime (31312030120331) 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, 699812910 + ... + 699857651.

It is an arithmetic number, because the mean of its divisors is an integer number (5219371525698).

Almost surely, 2^{31312030120131} is an apocalyptic number.

31312030120131 is a deficient number, since it is larger than the sum of its proper divisors (10442942085453).

31312030120131 is a wasteful number, since it uses less digits than its factorization.

31312030120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399678021.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31312030120131 its reverse (13102103021313), we get a palindrome (44414133141444).

The spelling of 31312030120131 in words is "thirty-one trillion, three hundred twelve billion, thirty million, one hundred twenty thousand, one hundred thirty-one".