145179121311 has 20 divisors (see below), whose sum is σ = 247854303312. Its totient is φ = 82959497568.

The previous prime is 145179121289. The next prime is 145179121327. The reversal of 145179121311 is 113121971541.

It is a happy number.

145179121311 is a `hidden beast` number, since 1 + 4 + 517 + 9 + 1 + 2 + 131 + 1 = 666.

It is not a de Polignac number, because 145179121311 - 2⁵ = 145179121279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145179121511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 128023350 + ... + 128024483.

Almost surely, 2^145179121311 is an apocalyptic number.

145179121311 is a deficient number, since it is larger than the sum of its proper divisors (102675182001).

145179121311 is an equidigital number, since it uses as much as digits as its factorization.

145179121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256047852 (or 256047843 counting only the distinct ones).

The product of its digits is 7560, while the sum is 36.

The spelling of 145179121311 in words is "one hundred forty-five billion, one hundred seventy-nine million, one hundred twenty-one thousand, three hundred eleven".