113021507 has 2 divisors, whose sum is σ = 113021508. Its totient is φ = 113021506.

The previous prime is 113021459. The next prime is 113021509. The reversal of 113021507 is 705120311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113021507 - 2²² = 108827203 is a prime.

It is a super-2 number, since 2×113021507² = 25547722089102098, which contains 22 as substring.

Together with 113021509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113021509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56510753 + 56510754.

It is an arithmetic number, because the mean of its divisors is an integer number (56510754).

Almost surely, 2^113021507 is an apocalyptic number.

113021507 is a deficient number, since it is larger than the sum of its proper divisors (1).

113021507 is an equidigital number, since it uses as much as digits as its factorization.

113021507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 113021507 is about 10631.1573687910. The cubic root of 113021507 is about 483.4894825905.

Adding to 113021507 its reverse (705120311), we get a palindrome (818141818).

The spelling of 113021507 in words is "one hundred thirteen million, twenty-one thousand, five hundred seven".