1056214027191 has 4 divisors (see below), whose sum is σ = 1408285369592. Its totient is φ = 704142684792.

The previous prime is 1056214027163. The next prime is 1056214027277. The reversal of 1056214027191 is 1917204126501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1056214027191 - 2¹⁰ = 1056214026167 is a prime.

It is a super-2 number, since 2×1056214027191² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056214027291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176035671196 + ... + 176035671201.

It is an arithmetic number, because the mean of its divisors is an integer number (352071342398).

Almost surely, 2^{1056214027191} is an apocalyptic number.

1056214027191 is a deficient number, since it is larger than the sum of its proper divisors (352071342401).

1056214027191 is an equidigital number, since it uses as much as digits as its factorization.

1056214027191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352071342400.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 1056214027191 in words is "one trillion, fifty-six billion, two hundred fourteen million, twenty-seven thousand, one hundred ninety-one".