1056500374109 has 2 divisors, whose sum is σ = 1056500374110. Its totient is φ = 1056500374108.

The previous prime is 1056500374051. The next prime is 1056500374141. The reversal of 1056500374109 is 9014730056501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988936769209 + 67563604900 = 994453^2 + 259930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056500374109 - 2¹⁶ = 1056500308573 is a prime.

It is a super-2 number, since 2×1056500374109² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056500374199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528250187054 + 528250187055.

It is an arithmetic number, because the mean of its divisors is an integer number (528250187055).

Almost surely, 2^{1056500374109} is an apocalyptic number.

It is an amenable number.

1056500374109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056500374109 is an equidigital number, since it uses as much as digits as its factorization.

1056500374109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 1056500374109 in words is "one trillion, fifty-six billion, five hundred million, three hundred seventy-four thousand, one hundred nine".