123544553032442 has 32 divisors (see below), whose sum is σ = 185968598630400. Its totient is φ = 61555259572848.

The previous prime is 123544553032429. The next prime is 123544553032489. The reversal of 123544553032442 is 244230355445321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10414269803 + ... + 10414281665.

It is an arithmetic number, because the mean of its divisors is an integer number (5811518707200).

Almost surely, 2^{123544553032442} is an apocalyptic number.

123544553032442 is a deficient number, since it is larger than the sum of its proper divisors (62424045597958).

123544553032442 is a wasteful number, since it uses less digits than its factorization.

123544553032442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20450.

The product of its (nonzero) digits is 6912000, while the sum is 47.

The spelling of 123544553032442 in words is "one hundred twenty-three trillion, five hundred forty-four billion, five hundred fifty-three million, thirty-two thousand, four hundred forty-two".