1303112331 has 12 divisors (see below), whose sum is σ = 1899543360. Its totient is φ = 860770800.

The previous prime is 1303112323. The next prime is 1303112399. The reversal of 1303112331 is 1332113031.

It is a happy number.

It is not a de Polignac number, because 1303112331 - 2³ = 1303112323 is a prime.

It is a super-2 number, since 2×1303112331² = 3396203494408507122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303112831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 663195 + ... + 665156.

It is an arithmetic number, because the mean of its divisors is an integer number (158295280).

Almost surely, 2^1303112331 is an apocalyptic number.

1303112331 is a deficient number, since it is larger than the sum of its proper divisors (596431029).

1303112331 is a wasteful number, since it uses less digits than its factorization.

1303112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328466 (or 1328463 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1303112331 is about 36098.6472184208. The cubic root of 1303112331 is about 1092.2631571025.

Adding to 1303112331 its reverse (1332113031), we get a palindrome (2635225362).

The spelling of 1303112331 in words is "one billion, three hundred three million, one hundred twelve thousand, three hundred thirty-one".