111301231009 has 2 divisors, whose sum is σ = 111301231010. Its totient is φ = 111301231008.

The previous prime is 111301230991. The next prime is 111301231039. The reversal of 111301231009 is 900132103111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111288960000 + 12271009 = 333600^2 + 3503^2 .

It is a cyclic number.

It is not a de Polignac number, because 111301231009 - 2⁵ = 111301230977 is a prime.

It is not a weakly prime, because it can be changed into another prime (111301231039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55650615504 + 55650615505.

It is an arithmetic number, because the mean of its divisors is an integer number (55650615505).

Almost surely, 2^111301231009 is an apocalyptic number.

It is an amenable number.

111301231009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111301231009 is an equidigital number, since it uses as much as digits as its factorization.

111301231009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 111301231009 in words is "one hundred eleven billion, three hundred one million, two hundred thirty-one thousand, nine".