113003021731 has 2 divisors, whose sum is σ = 113003021732. Its totient is φ = 113003021730.

The previous prime is 113003021723. The next prime is 113003021753. The reversal of 113003021731 is 137120300311.

It is an a-pointer prime, because the next prime (113003021753) can be obtained adding 113003021731 to its sum of digits (22).

It is a weak prime.

It is an emirp because it is prime and its reverse (137120300311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113003021731 - 2³ = 113003021723 is a prime.

It is a super-2 number, since 2×113003021731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113003021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56501510865 + 56501510866.

It is an arithmetic number, because the mean of its divisors is an integer number (56501510866).

Almost surely, 2^113003021731 is an apocalyptic number.

113003021731 is a deficient number, since it is larger than the sum of its proper divisors (1).

113003021731 is an equidigital number, since it uses as much as digits as its factorization.

113003021731 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 22.

The spelling of 113003021731 in words is "one hundred thirteen billion, three million, twenty-one thousand, seven hundred thirty-one".