1056236121 has 12 divisors (see below), whose sum is σ = 1526353920. Its totient is φ = 703843800.

The previous prime is 1056236053. The next prime is 1056236143. The reversal of 1056236121 is 1216326501.

1056236121 is a `hidden beast` number, since 10 + 5 + 623 + 6 + 1 + 21 = 666.

It is not a de Polignac number, because 1056236121 - 2¹⁰ = 1056235097 is a prime.

It is a super-2 number, since 2×1056236121² = 2231269486610253282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056236191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3801 + ... + 46118.

It is an arithmetic number, because the mean of its divisors is an integer number (127196160).

Almost surely, 2^1056236121 is an apocalyptic number.

It is an amenable number.

1056236121 is a deficient number, since it is larger than the sum of its proper divisors (470117799).

1056236121 is a wasteful number, since it uses less digits than its factorization.

1056236121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52276 (or 52273 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1056236121 is about 32499.7864762217. The cubic root of 1056236121 is about 1018.4045675132.

The spelling of 1056236121 in words is "one billion, fifty-six million, two hundred thirty-six thousand, one hundred twenty-one".