31020300230131 has 2 divisors, whose sum is σ = 31020300230132. Its totient is φ = 31020300230130.

The previous prime is 31020300230047. The next prime is 31020300230177. The reversal of 31020300230131 is 13103200302013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31020300230131 - 2¹¹ = 31020300228083 is a prime.

It is a super-2 number, since 2×31020300230131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31020300230099 and 31020300230108.

It is not a weakly prime, because it can be changed into another prime (31020300210131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510150115065 + 15510150115066.

It is an arithmetic number, because the mean of its divisors is an integer number (15510150115066).

Almost surely, 2^{31020300230131} is an apocalyptic number.

31020300230131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020300230131 is an equidigital number, since it uses as much as digits as its factorization.

31020300230131 is an evil number, because the sum of its binary digits is even.

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

Adding to 31020300230131 its reverse (13103200302013), we get a palindrome (44123500532144).

The spelling of 31020300230131 in words is "thirty-one trillion, twenty billion, three hundred million, two hundred thirty thousand, one hundred thirty-one".