31020658489343 has 2 divisors, whose sum is σ = 31020658489344. Its totient is φ = 31020658489342.

The previous prime is 31020658489309. The next prime is 31020658489417. The reversal of 31020658489343 is 34398485602013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020658489343 - 2¹² = 31020658485247 is a prime.

It is a super-2 number, since 2×31020658489343² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31020658486343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510329244671 + 15510329244672.

It is an arithmetic number, because the mean of its divisors is an integer number (15510329244672).

Almost surely, 2^{31020658489343} is an apocalyptic number.

31020658489343 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020658489343 is an equidigital number, since it uses as much as digits as its factorization.

31020658489343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 31020658489343 in words is "thirty-one trillion, twenty billion, six hundred fifty-eight million, four hundred eighty-nine thousand, three hundred forty-three".