111141931451 has 2 divisors, whose sum is σ = 111141931452. Its totient is φ = 111141931450.

The previous prime is 111141931429. The next prime is 111141931469. The reversal of 111141931451 is 154139141111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111141931451 is a prime.

It is not a weakly prime, because it can be changed into another prime (111141931651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55570965725 + 55570965726.

It is an arithmetic number, because the mean of its divisors is an integer number (55570965726).

Almost surely, 2^111141931451 is an apocalyptic number.

111141931451 is a deficient number, since it is larger than the sum of its proper divisors (1).

111141931451 is an equidigital number, since it uses as much as digits as its factorization.

111141931451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 32.

The spelling of 111141931451 in words is "one hundred eleven billion, one hundred forty-one million, nine hundred thirty-one thousand, four hundred fifty-one".