231242023997 has 2 divisors, whose sum is σ = 231242023998. Its totient is φ = 231242023996.

The previous prime is 231242023973. The next prime is 231242024023. The reversal of 231242023997 is 799320242132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146429440921 + 84812583076 = 382661^2 + 291226^2 .

It is a cyclic number.

It is not a de Polignac number, because 231242023997 - 2¹² = 231242019901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231242023907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115621011998 + 115621011999.

It is an arithmetic number, because the mean of its divisors is an integer number (115621011999).

Almost surely, 2^231242023997 is an apocalyptic number.

It is an amenable number.

231242023997 is a deficient number, since it is larger than the sum of its proper divisors (1).

231242023997 is an equidigital number, since it uses as much as digits as its factorization.

231242023997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 231242023997 in words is "two hundred thirty-one billion, two hundred forty-two million, twenty-three thousand, nine hundred ninety-seven".