1203112313 has 16 divisors (see below), whose sum is σ = 1388545536. Its totient is φ = 1033560000.

The previous prime is 1203112301. The next prime is 1203112331. The reversal of 1203112313 is 3132113021.

It is a cyclic number.

It is not a de Polignac number, because 1203112313 - 2⁴ = 1203112297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203112291 and 1203112300.

It is not an unprimeable number, because it can be changed into a prime (1203112213) 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, 43313 + ... + 65438.

It is an arithmetic number, because the mean of its divisors is an integer number (86784096).

Almost surely, 2^1203112313 is an apocalyptic number.

1203112313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1203112313 is a deficient number, since it is larger than the sum of its proper divisors (185433223).

1203112313 is a wasteful number, since it uses less digits than its factorization.

1203112313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108824.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1203112313 is about 34685.9094301995. The cubic root of 1203112313 is about 1063.5764777673.

Adding to 1203112313 its reverse (3132113021), we get a palindrome (4335225334).

The spelling of 1203112313 in words is "one billion, two hundred three million, one hundred twelve thousand, three hundred thirteen".