31030003220131 has 16 divisors (see below), whose sum is σ = 32109861420000. Its totient is φ = 29950804025856.

The previous prime is 31030003220113. The next prime is 31030003220143. The reversal of 31030003220131 is 13102230003013.

It is a cyclic number.

It is not a de Polignac number, because 31030003220131 - 2⁹ = 31030003219619 is a prime.

It is a super-2 number, since 2×31030003220131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31030003220099 and 31030003220108.

It is not an unprimeable number, because it can be changed into a prime (31030003220191) 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, 2078497675 + ... + 2078512603.

It is an arithmetic number, because the mean of its divisors is an integer number (2006866338750).

Almost surely, 2^{31030003220131} is an apocalyptic number.

31030003220131 is a deficient number, since it is larger than the sum of its proper divisors (1079858199869).

31030003220131 is a wasteful number, since it uses less digits than its factorization.

31030003220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32166.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31030003220131 its reverse (13102230003013), we get a palindrome (44132233223144).

The spelling of 31030003220131 in words is "thirty-one trillion, thirty billion, three million, two hundred twenty thousand, one hundred thirty-one".