83398533131 has 2 divisors, whose sum is σ = 83398533132. Its totient is φ = 83398533130.

The previous prime is 83398533121. The next prime is 83398533143. The reversal of 83398533131 is 13133589338.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83398533131 is a prime.

It is a super-2 number, since 2×83398533131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83398533121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41699266565 + 41699266566.

It is an arithmetic number, because the mean of its divisors is an integer number (41699266566).

Almost surely, 2^83398533131 is an apocalyptic number.

83398533131 is a deficient number, since it is larger than the sum of its proper divisors (1).

83398533131 is an equidigital number, since it uses as much as digits as its factorization.

83398533131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The spelling of 83398533131 in words is "eighty-three billion, three hundred ninety-eight million, five hundred thirty-three thousand, one hundred thirty-one".