236500913023421 has 2 divisors, whose sum is σ = 236500913023422. Its totient is φ = 236500913023420.

The previous prime is 236500913023399. The next prime is 236500913023447. The reversal of 236500913023421 is 124320319005632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236372329104025 + 128583919396 = 15374405^2 + 358586^2 .

It is a cyclic number.

It is not a de Polignac number, because 236500913023421 - 2⁶ = 236500913023357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236500613023421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118250456511710 + 118250456511711.

It is an arithmetic number, because the mean of its divisors is an integer number (118250456511711).

Almost surely, 2^{236500913023421} is an apocalyptic number.

It is an amenable number.

236500913023421 is a deficient number, since it is larger than the sum of its proper divisors (1).

236500913023421 is an equidigital number, since it uses as much as digits as its factorization.

236500913023421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 236500913023421 in words is "two hundred thirty-six trillion, five hundred billion, nine hundred thirteen million, twenty-three thousand, four hundred twenty-one".