111200120002051 has 2 divisors, whose sum is σ = 111200120002052. Its totient is φ = 111200120002050.

The previous prime is 111200120001911. The next prime is 111200120002063. The reversal of 111200120002051 is 150200021002111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111200120002051 - 2²⁷ = 111199985784323 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200120002091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600060001025 + 55600060001026.

It is an arithmetic number, because the mean of its divisors is an integer number (55600060001026).

Almost surely, 2^{111200120002051} is an apocalyptic number.

111200120002051 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200120002051 is an equidigital number, since it uses as much as digits as its factorization.

111200120002051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 111200120002051 its reverse (150200021002111), we get a palindrome (261400141004162).

The spelling of 111200120002051 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty million, two thousand, fifty-one".