1203113113 has 2 divisors, whose sum is σ = 1203113114. Its totient is φ = 1203113112.

The previous prime is 1203113099. The next prime is 1203113123. The reversal of 1203113113 is 3113113021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613206169 + 589906944 = 24763^2 + 24288^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203113113 - 2²¹ = 1201015961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203113123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601556556 + 601556557.

It is an arithmetic number, because the mean of its divisors is an integer number (601556557).

Almost surely, 2^1203113113 is an apocalyptic number.

It is an amenable number.

1203113113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203113113 is an equidigital number, since it uses as much as digits as its factorization.

1203113113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1203113113 is about 34685.9209622579. The cubic root of 1203113113 is about 1063.5767135062.

Adding to 1203113113 its reverse (3113113021), we get a palindrome (4316226134).

The spelling of 1203113113 in words is "one billion, two hundred three million, one hundred thirteen thousand, one hundred thirteen".