231868072453 has 2 divisors, whose sum is σ = 231868072454. Its totient is φ = 231868072452.

The previous prime is 231868072427. The next prime is 231868072493. The reversal of 231868072453 is 354270868132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228161941569 + 3706130884 = 477663^2 + 60878^2 .

It is a cyclic number.

It is not a de Polignac number, because 231868072453 - 2³³ = 223278137861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231868072397 and 231868072406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231868072493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115934036226 + 115934036227.

It is an arithmetic number, because the mean of its divisors is an integer number (115934036227).

Almost surely, 2^231868072453 is an apocalyptic number.

It is an amenable number.

231868072453 is a deficient number, since it is larger than the sum of its proper divisors (1).

231868072453 is an equidigital number, since it uses as much as digits as its factorization.

231868072453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 231868072453 in words is "two hundred thirty-one billion, eight hundred sixty-eight million, seventy-two thousand, four hundred fifty-three".