1231162803 has 18 divisors (see below), whose sum is σ = 1925667276. Its totient is φ = 757637712.

The previous prime is 1231162783. The next prime is 1231162813. The reversal of 1231162803 is 3082611321.

It is a happy number.

1231162803 is a `hidden beast` number, since 1 + 2 + 31 + 1 + 628 + 0 + 3 = 666.

It is not a de Polignac number, because 1231162803 - 2⁹ = 1231162291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231162813) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 403201 + ... + 406242.

Almost surely, 2^1231162803 is an apocalyptic number.

1231162803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1231162803 is a deficient number, since it is larger than the sum of its proper divisors (694504473).

1231162803 is a wasteful number, since it uses less digits than its factorization.

1231162803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809475 (or 809459 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1231162803 is about 35087.9295912426. The cubic root of 1231162803 is about 1071.7787988846.

The spelling of 1231162803 in words is "one billion, two hundred thirty-one million, one hundred sixty-two thousand, eight hundred three".