110139237209 has 2 divisors, whose sum is σ = 110139237210. Its totient is φ = 110139237208.

The previous prime is 110139237181. The next prime is 110139237277. The reversal of 110139237209 is 902732931011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100582219609 + 9557017600 = 317147^2 + 97760^2 .

It is a cyclic number.

It is not a de Polignac number, because 110139237209 - 2⁸ = 110139236953 is a prime.

It is not a weakly prime, because it can be changed into another prime (110133237209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55069618604 + 55069618605.

It is an arithmetic number, because the mean of its divisors is an integer number (55069618605).

Almost surely, 2^110139237209 is an apocalyptic number.

It is an amenable number.

110139237209 is a deficient number, since it is larger than the sum of its proper divisors (1).

110139237209 is an equidigital number, since it uses as much as digits as its factorization.

110139237209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 110139237209 in words is "one hundred ten billion, one hundred thirty-nine million, two hundred thirty-seven thousand, two hundred nine".