111231300137 has 2 divisors, whose sum is σ = 111231300138. Its totient is φ = 111231300136.

The previous prime is 111231300113. The next prime is 111231300199. The reversal of 111231300137 is 731003132111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93349191961 + 17882108176 = 305531^2 + 133724^2 .

It is a cyclic number.

It is not a de Polignac number, because 111231300137 - 2¹⁴ = 111231283753 is a prime.

It is not a weakly prime, because it can be changed into another prime (111231300737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615650068 + 55615650069.

It is an arithmetic number, because the mean of its divisors is an integer number (55615650069).

Almost surely, 2^111231300137 is an apocalyptic number.

It is an amenable number.

111231300137 is a deficient number, since it is larger than the sum of its proper divisors (1).

111231300137 is an equidigital number, since it uses as much as digits as its factorization.

111231300137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

Adding to 111231300137 its reverse (731003132111), we get a palindrome (842234432248).

The spelling of 111231300137 in words is "one hundred eleven billion, two hundred thirty-one million, three hundred thousand, one hundred thirty-seven".