145312440043023 has 48 divisors (see below), whose sum is σ = 240209181987840. Its totient is φ = 83833688635200.

The previous prime is 145312440042961. The next prime is 145312440043027. The reversal of 145312440043023 is 320340044213541.

145312440043023 is a `hidden beast` number, since 1 + 4 + 531 + 24 + 40 + 0 + 43 + 0 + 23 = 666.

It is not a de Polignac number, because 145312440043023 - 2⁴⁶ = 74943695865359 is a prime.

It is a super-2 number, since 2×145312440043023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145312440043027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356231911 + ... + 356639592.

It is an arithmetic number, because the mean of its divisors is an integer number (5004357958080).

Almost surely, 2^{145312440043023} is an apocalyptic number.

145312440043023 is a deficient number, since it is larger than the sum of its proper divisors (94896741944817).

145312440043023 is a wasteful number, since it uses less digits than its factorization.

145312440043023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712871620 (or 712871617 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 145312440043023 its reverse (320340044213541), we get a palindrome (465652484256564).

The spelling of 145312440043023 in words is "one hundred forty-five trillion, three hundred twelve billion, four hundred forty million, forty-three thousand, twenty-three".