1113010121 has 2 divisors, whose sum is σ = 1113010122. Its totient is φ = 1113010120.

The previous prime is 1113010109. The next prime is 1113010127. The reversal of 1113010121 is 1210103111.

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., 1097994496 + 15015625 = 33136^2 + 3875^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113010121 - 2²² = 1108815817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556505060 + 556505061.

It is an arithmetic number, because the mean of its divisors is an integer number (556505061).

Almost surely, 2^1113010121 is an apocalyptic number.

It is an amenable number.

1113010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113010121 is an equidigital number, since it uses as much as digits as its factorization.

1113010121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1113010121 is about 33361.8063210013. The cubic root of 1113010121 is about 1036.3338993330. Note that the first 3 decimals are identical.

Adding to 1113010121 its reverse (1210103111), we get a palindrome (2323113232).

The spelling of 1113010121 in words is "one billion, one hundred thirteen million, ten thousand, one hundred twenty-one".