231296291573 has 2 divisors, whose sum is σ = 231296291574. Its totient is φ = 231296291572.

The previous prime is 231296291557. The next prime is 231296291641. The reversal of 231296291573 is 375192692132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219250570564 + 12045721009 = 468242^2 + 109753^2 .

It is a cyclic number.

It is not a de Polignac number, because 231296291573 - 2⁴ = 231296291557 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 (231296291543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115648145786 + 115648145787.

It is an arithmetic number, because the mean of its divisors is an integer number (115648145787).

Almost surely, 2^231296291573 is an apocalyptic number.

It is an amenable number.

231296291573 is a deficient number, since it is larger than the sum of its proper divisors (1).

231296291573 is an equidigital number, since it uses as much as digits as its factorization.

231296291573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The spelling of 231296291573 in words is "two hundred thirty-one billion, two hundred ninety-six million, two hundred ninety-one thousand, five hundred seventy-three".