1056123331 has 2 divisors, whose sum is σ = 1056123332. Its totient is φ = 1056123330.

The previous prime is 1056123319. The next prime is 1056123347. The reversal of 1056123331 is 1333216501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1056123331 - 2⁷ = 1056123203 is a prime.

It is a super-2 number, since 2×1056123331² = 2230792980565071122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056123296 and 1056123305.

It is not a weakly prime, because it can be changed into another prime (1056123311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528061665 + 528061666.

It is an arithmetic number, because the mean of its divisors is an integer number (528061666).

Almost surely, 2^1056123331 is an apocalyptic number.

1056123331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056123331 is an equidigital number, since it uses as much as digits as its factorization.

1056123331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1056123331 is about 32498.0511877251. The cubic root of 1056123331 is about 1018.3683161682.

Adding to 1056123331 its reverse (1333216501), we get a palindrome (2389339832).

The spelling of 1056123331 in words is "one billion, fifty-six million, one hundred twenty-three thousand, three hundred thirty-one".