231533453533423 has 2 divisors, whose sum is σ = 231533453533424. Its totient is φ = 231533453533422.

The previous prime is 231533453533337. The next prime is 231533453533451. The reversal of 231533453533423 is 324335354335132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231533453533423 - 2¹⁷ = 231533453402351 is a prime.

It is a super-2 number, since 2×231533453533423² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231533453533453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115766726766711 + 115766726766712.

It is an arithmetic number, because the mean of its divisors is an integer number (115766726766712).

Almost surely, 2^{231533453533423} is an apocalyptic number.

231533453533423 is a deficient number, since it is larger than the sum of its proper divisors (1).

231533453533423 is an equidigital number, since it uses as much as digits as its factorization.

231533453533423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496000, while the sum is 49.

The spelling of 231533453533423 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred fifty-three million, five hundred thirty-three thousand, four hundred twenty-three".