111401838113 has 2 divisors, whose sum is σ = 111401838114. Its totient is φ = 111401838112.

The previous prime is 111401838061. The next prime is 111401838137. The reversal of 111401838113 is 311838104111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64114291264 + 47287546849 = 253208^2 + 217457^2 .

It is a cyclic number.

It is not a de Polignac number, because 111401838113 - 2¹² = 111401834017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111401838113.

It is not a weakly prime, because it can be changed into another prime (111401828113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55700919056 + 55700919057.

It is an arithmetic number, because the mean of its divisors is an integer number (55700919057).

Almost surely, 2^111401838113 is an apocalyptic number.

It is an amenable number.

111401838113 is a deficient number, since it is larger than the sum of its proper divisors (1).

111401838113 is an equidigital number, since it uses as much as digits as its factorization.

111401838113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 111401838113 in words is "one hundred eleven billion, four hundred one million, eight hundred thirty-eight thousand, one hundred thirteen".