111355400201 has 2 divisors, whose sum is σ = 111355400202. Its totient is φ = 111355400200.

The previous prime is 111355400183. The next prime is 111355400239. The reversal of 111355400201 is 102004553111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108306151801 + 3049248400 = 329099^2 + 55220^2 .

It is a cyclic number.

It is not a de Polignac number, because 111355400201 - 2⁶ = 111355400137 is a prime.

It is not a weakly prime, because it can be changed into another prime (111355400251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55677700100 + 55677700101.

It is an arithmetic number, because the mean of its divisors is an integer number (55677700101).

Almost surely, 2^111355400201 is an apocalyptic number.

It is an amenable number.

111355400201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111355400201 is an equidigital number, since it uses as much as digits as its factorization.

111355400201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 111355400201 its reverse (102004553111), we get a palindrome (213359953312).

The spelling of 111355400201 in words is "one hundred eleven billion, three hundred fifty-five million, four hundred thousand, two hundred one".