123390160920 has 896 divisors, whose sum is σ = 487257301440. Its totient is φ = 27829370880.

The previous prime is 123390160877. The next prime is 123390160939. The reversal of 123390160920 is 29061093321.

It is a happy number.

123390160920 is a `hidden beast` number, since 1 + 23 + 3 + 9 + 0 + 1 + 609 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 264218527 + ... + 264218993.

Almost surely, 2^123390160920 is an apocalyptic number.

123390160920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123390160920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243628650720).

123390160920 is an abundant number, since it is smaller than the sum of its proper divisors (363867140520).

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

123390160920 is a wasteful number, since it uses less digits than its factorization.

123390160920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 123390160920 in words is "one hundred twenty-three billion, three hundred ninety million, one hundred sixty thousand, nine hundred twenty".