1631119051 has 2 divisors, whose sum is σ = 1631119052. Its totient is φ = 1631119050.

The previous prime is 1631119003. The next prime is 1631119073. The reversal of 1631119051 is 1509111361.

It is a strong prime.

It is an emirp because it is prime and its reverse (1509111361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1631119051 - 2²³ = 1622730443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1631119151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815559525 + 815559526.

It is an arithmetic number, because the mean of its divisors is an integer number (815559526).

Almost surely, 2^1631119051 is an apocalyptic number.

1631119051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631119051 is an equidigital number, since it uses as much as digits as its factorization.

1631119051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 1631119051 is about 40387.1149130512. The cubic root of 1631119051 is about 1177.1411812926.

The spelling of 1631119051 in words is "one billion, six hundred thirty-one million, one hundred nineteen thousand, fifty-one".