123530432045533 has 6 divisors (see below), whose sum is σ = 130374223294974. Its totient is φ = 117028830358584.

The previous prime is 123530432045513. The next prime is 123530432045551. The reversal of 123530432045533 is 335540234035321.

It can be written as a sum of positive squares in only one way, i.e., 113899203935449 + 9631228110084 = 10672357^2 + 3103422^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123530432045533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123530432045533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123530432045513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171094780866 + ... + 171094781587.

It is an arithmetic number, because the mean of its divisors is an integer number (21729037215829).

Almost surely, 2^{123530432045533} is an apocalyptic number.

It is an amenable number.

123530432045533 is a deficient number, since it is larger than the sum of its proper divisors (6843791249441).

123530432045533 is an equidigital number, since it uses as much as digits as its factorization.

123530432045533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342189562491 (or 342189562472 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 43.

The spelling of 123530432045533 in words is "one hundred twenty-three trillion, five hundred thirty billion, four hundred thirty-two million, forty-five thousand, five hundred thirty-three".