1203113112 has 32 divisors (see below), whose sum is σ = 3010074480. Its totient is φ = 400732160.

The previous prime is 1203113099. The next prime is 1203113113. The reversal of 1203113112 is 2113113021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1203113091 and 1203113100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203113113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14248 + ... + 51080.

Almost surely, 2^1203113112 is an apocalyptic number.

1203113112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203113112 is an abundant number, since it is smaller than the sum of its proper divisors (1806961368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1203113112 is a wasteful number, since it uses less digits than its factorization.

1203113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38203 (or 38199 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1203113112 is about 34685.9209478428. The cubic root of 1203113112 is about 1063.5767132115.

Adding to 1203113112 its reverse (2113113021), we get a palindrome (3316226133).

Subtracting 1203113112 from its reverse (2113113021), we obtain a palindrome (909999909).

The spelling of 1203113112 in words is "one billion, two hundred three million, one hundred thirteen thousand, one hundred twelve".