123234557790 has 32 divisors (see below), whose sum is σ = 305961662880. Its totient is φ = 31729357184.

The previous prime is 123234557779. The next prime is 123234557801. The reversal of 123234557790 is 97755432321.

It is an interprime number because it is at equal distance from previous prime (123234557779) and next prime (123234557801).

It is a congruent number.

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, 70823589 + ... + 70825328.

It is an arithmetic number, because the mean of its divisors is an integer number (9561301965).

Almost surely, 2^123234557790 is an apocalyptic number.

123234557790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123234557790 is an abundant number, since it is smaller than the sum of its proper divisors (182727105090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123234557790 is a wasteful number, since it uses less digits than its factorization.

123234557790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141648956.

The product of its (nonzero) digits is 1587600, while the sum is 48.

The spelling of 123234557790 in words is "one hundred twenty-three billion, two hundred thirty-four million, five hundred fifty-seven thousand, seven hundred ninety".