113211311009 has 2 divisors, whose sum is σ = 113211311010. Its totient is φ = 113211311008.

The previous prime is 113211310987. The next prime is 113211311027. The reversal of 113211311009 is 900113112311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112536766225 + 674544784 = 335465^2 + 25972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113211311009 is a prime.

It is not a weakly prime, because it can be changed into another prime (113211311039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56605655504 + 56605655505.

It is an arithmetic number, because the mean of its divisors is an integer number (56605655505).

Almost surely, 2^113211311009 is an apocalyptic number.

It is an amenable number.

113211311009 is a deficient number, since it is larger than the sum of its proper divisors (1).

113211311009 is an equidigital number, since it uses as much as digits as its factorization.

113211311009 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 23.

The spelling of 113211311009 in words is "one hundred thirteen billion, two hundred eleven million, three hundred eleven thousand, nine".