123245943720 has 64 divisors (see below), whose sum is σ = 369917280000. Its totient is φ = 32849634048.

The previous prime is 123245943713. The next prime is 123245943757. The reversal of 123245943720 is 27349542321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81 + ... + 496479.

It is an arithmetic number, because the mean of its divisors is an integer number (5779957500).

Almost surely, 2^123245943720 is an apocalyptic number.

123245943720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123245943720 is an abundant number, since it is smaller than the sum of its proper divisors (246671336280).

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

123245943720 is a wasteful number, since it uses less digits than its factorization.

123245943720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498482 (or 498478 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 123245943720 in words is "one hundred twenty-three billion, two hundred forty-five million, nine hundred forty-three thousand, seven hundred twenty".