231553533142319 has 2 divisors, whose sum is σ = 231553533142320. Its totient is φ = 231553533142318.

The previous prime is 231553533142291. The next prime is 231553533142339. The reversal of 231553533142319 is 913241335355132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231553533142319 - 2¹⁶ = 231553533076783 is a prime.

It is a super-2 number, since 2×231553533142319² (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 (231553533142339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115776766571159 + 115776766571160.

It is an arithmetic number, because the mean of its divisors is an integer number (115776766571160).

Almost surely, 2^{231553533142319} is an apocalyptic number.

231553533142319 is a deficient number, since it is larger than the sum of its proper divisors (1).

231553533142319 is an equidigital number, since it uses as much as digits as its factorization.

231553533142319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374000, while the sum is 50.

The spelling of 231553533142319 in words is "two hundred thirty-one trillion, five hundred fifty-three billion, five hundred thirty-three million, one hundred forty-two thousand, three hundred nineteen".