111144400951 has 2 divisors, whose sum is σ = 111144400952. Its totient is φ = 111144400950.

The previous prime is 111144400949. The next prime is 111144401041. The reversal of 111144400951 is 159004441111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111144400951 - 2¹ = 111144400949 is a prime.

Together with 111144400949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111144400931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55572200475 + 55572200476.

It is an arithmetic number, because the mean of its divisors is an integer number (55572200476).

Almost surely, 2^111144400951 is an apocalyptic number.

111144400951 is a deficient number, since it is larger than the sum of its proper divisors (1).

111144400951 is an equidigital number, since it uses as much as digits as its factorization.

111144400951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 111144400951 in words is "one hundred eleven billion, one hundred forty-four million, four hundred thousand, nine hundred fifty-one".