1056323100 has 144 divisors (see below), whose sum is σ = 3502775808. Its totient is φ = 240764160.

The previous prime is 1056323083. The next prime is 1056323123. The reversal of 1056323100 is 13236501.

It is a super-2 number, since 2×1056323100² = 2231636983187220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1421329 + ... + 1422071.

It is an arithmetic number, because the mean of its divisors is an integer number (24324832).

Almost surely, 2^1056323100 is an apocalyptic number.

1056323100 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 1056323100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751387904).

1056323100 is an abundant number, since it is smaller than the sum of its proper divisors (2446452708).

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

1056323100 is a wasteful number, since it uses less digits than its factorization.

1056323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1056323100 is about 32501.1245959274. The cubic root of 1056323100 is about 1018.4325212942.

Adding to 1056323100 its reverse (13236501), we get a palindrome (1069559601).

The spelling of 1056323100 in words is "one billion, fifty-six million, three hundred twenty-three thousand, one hundred".