236530058981 has 2 divisors, whose sum is σ = 236530058982. Its totient is φ = 236530058980.

The previous prime is 236530058903. The next prime is 236530059023. The reversal of 236530058981 is 189850035632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210925258756 + 25604800225 = 459266^2 + 160015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-236530058981 is a prime.

It is a super-2 number, since 2×236530058981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236530018981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118265029490 + 118265029491.

It is an arithmetic number, because the mean of its divisors is an integer number (118265029491).

Almost surely, 2^236530058981 is an apocalyptic number.

It is an amenable number.

236530058981 is a deficient number, since it is larger than the sum of its proper divisors (1).

236530058981 is an equidigital number, since it uses as much as digits as its factorization.

236530058981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 236530058981 in words is "two hundred thirty-six billion, five hundred thirty million, fifty-eight thousand, nine hundred eighty-one".