231132300989 has 2 divisors, whose sum is σ = 231132300990. Its totient is φ = 231132300988.

The previous prime is 231132300943. The next prime is 231132301027. The reversal of 231132300989 is 989003231132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230064122500 + 1068178489 = 479650^2 + 32683^2 .

It is a cyclic number.

It is not a de Polignac number, because 231132300989 - 2¹² = 231132296893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231132300389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115566150494 + 115566150495.

It is an arithmetic number, because the mean of its divisors is an integer number (115566150495).

Almost surely, 2^231132300989 is an apocalyptic number.

It is an amenable number.

231132300989 is a deficient number, since it is larger than the sum of its proper divisors (1).

231132300989 is an equidigital number, since it uses as much as digits as its factorization.

231132300989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 231132300989 in words is "two hundred thirty-one billion, one hundred thirty-two million, three hundred thousand, nine hundred eighty-nine".