1056123800 has 24 divisors (see below), whose sum is σ = 2455488300. Its totient is φ = 422449440.

The previous prime is 1056123799. The next prime is 1056123823. The reversal of 1056123800 is 83216501.

It is a super-2 number, since 2×1056123800² = 2230794961852880000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056123800.

It is a congruent number.

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, 2640110 + ... + 2640509.

Almost surely, 2^1056123800 is an apocalyptic number.

1056123800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056123800 is an abundant number, since it is smaller than the sum of its proper divisors (1399364500).

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

1056123800 is a wasteful number, since it uses less digits than its factorization.

1056123800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280635 (or 5280626 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1056123800 is about 32498.0584035416. The cubic root of 1056123800 is about 1018.3684669128.

The spelling of 1056123800 in words is "one billion, fifty-six million, one hundred twenty-three thousand, eight hundred".