1203120113 has 16 divisors (see below), whose sum is σ = 1337478912. Its totient is φ = 1075152000.

The previous prime is 1203120103. The next prime is 1203120143. The reversal of 1203120113 is 3110213021.

It is not a de Polignac number, because 1203120113 - 2⁴ = 1203120097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203120103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61208 + ... + 78438.

It is an arithmetic number, because the mean of its divisors is an integer number (83592432).

Almost surely, 2^1203120113 is an apocalyptic number.

1203120113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1203120113 is a deficient number, since it is larger than the sum of its proper divisors (134358799).

1203120113 is a wasteful number, since it uses less digits than its factorization.

1203120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17416.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1203120113 is about 34686.0218676054. The cubic root of 1203120113 is about 1063.5787762168.

Adding to 1203120113 its reverse (3110213021), we get a palindrome (4313333134).

The spelling of 1203120113 in words is "one billion, two hundred three million, one hundred twenty thousand, one hundred thirteen".