123443155331452 has 24 divisors (see below), whose sum is σ = 235848750928560. Its totient is φ = 56066585794560.

The previous prime is 123443155331413. The next prime is 123443155331501. The reversal of 123443155331452 is 254133551344321.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1098427077 + ... + 1098539452.

It is an arithmetic number, because the mean of its divisors is an integer number (9827031288690).

Almost surely, 2^{123443155331452} is an apocalyptic number.

It is an amenable number.

123443155331452 is a deficient number, since it is larger than the sum of its proper divisors (112405595597108).

123443155331452 is a wasteful number, since it uses less digits than its factorization.

123443155331452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196967821 (or 2196967819 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 46.

The spelling of 123443155331452 in words is "one hundred twenty-three trillion, four hundred forty-three billion, one hundred fifty-five million, three hundred thirty-one thousand, four hundred fifty-two".