201056075291 has 2 divisors, whose sum is σ = 201056075292. Its totient is φ = 201056075290.

The previous prime is 201056075261. The next prime is 201056075347. The reversal of 201056075291 is 192570650102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201056075291 - 2²² = 201051880987 is a prime.

It is a super-2 number, since 2×201056075291² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201056075261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100528037645 + 100528037646.

It is an arithmetic number, because the mean of its divisors is an integer number (100528037646).

Almost surely, 2^201056075291 is an apocalyptic number.

201056075291 is a deficient number, since it is larger than the sum of its proper divisors (1).

201056075291 is an equidigital number, since it uses as much as digits as its factorization.

201056075291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 201056075291 in words is "two hundred one billion, fifty-six million, seventy-five thousand, two hundred ninety-one".