232640020369 has 2 divisors, whose sum is σ = 232640020370. Its totient is φ = 232640020368.

The previous prime is 232640020337. The next prime is 232640020427. The reversal of 232640020369 is 963020046232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133125008769 + 99515011600 = 364863^2 + 315460^2 .

It is a cyclic number.

It is not a de Polignac number, because 232640020369 - 2⁵ = 232640020337 is a prime.

It is a super-2 number, since 2×232640020369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (232640024369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116320010184 + 116320010185.

It is an arithmetic number, because the mean of its divisors is an integer number (116320010185).

Almost surely, 2^232640020369 is an apocalyptic number.

It is an amenable number.

232640020369 is a deficient number, since it is larger than the sum of its proper divisors (1).

232640020369 is an equidigital number, since it uses as much as digits as its factorization.

232640020369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 232640020369 in words is "two hundred thirty-two billion, six hundred forty million, twenty thousand, three hundred sixty-nine".