145423452320231 has 2 divisors, whose sum is σ = 145423452320232. Its totient is φ = 145423452320230.

The previous prime is 145423452320227. The next prime is 145423452320239. The reversal of 145423452320231 is 132023254324541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145423452320231 - 2² = 145423452320227 is a prime.

It is a super-2 number, since 2×145423452320231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145423452320239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72711726160115 + 72711726160116.

It is an arithmetic number, because the mean of its divisors is an integer number (72711726160116).

Almost surely, 2^{145423452320231} is an apocalyptic number.

145423452320231 is a deficient number, since it is larger than the sum of its proper divisors (1).

145423452320231 is an equidigital number, since it uses as much as digits as its factorization.

145423452320231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 145423452320231 in words is "one hundred forty-five trillion, four hundred twenty-three billion, four hundred fifty-two million, three hundred twenty thousand, two hundred thirty-one".