123800192928 has 36 divisors (see below), whose sum is σ = 352056799458. Its totient is φ = 41266730880.

The previous prime is 123800192917. The next prime is 123800192939. The reversal of 123800192928 is 829291008321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123800192917) and next prime (123800192939).

It can be written as a sum of positive squares in only one way, i.e., 64043412624 + 59756780304 = 253068^2 + 244452^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214930603 + ... + 214931178.

Almost surely, 2^123800192928 is an apocalyptic number.

123800192928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

123800192928 is an abundant number, since it is smaller than the sum of its proper divisors (228256606530).

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

123800192928 is a wasteful number, since it uses less digits than its factorization.

123800192928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429861797 (or 429861786 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 123800192928 in words is "one hundred twenty-three billion, eight hundred million, one hundred ninety-two thousand, nine hundred twenty-eight".