1312023303 has 6 divisors (see below), whose sum is σ = 1895144784. Its totient is φ = 874682196.

The previous prime is 1312023301. The next prime is 1312023311. The reversal of 1312023303 is 3033202131.

1312023303 is a `hidden beast` number, since 131 + 202 + 330 + 3 = 666.

It is not a de Polignac number, because 1312023303 - 2¹ = 1312023301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312023301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72890175 + ... + 72890192.

It is an arithmetic number, because the mean of its divisors is an integer number (315857464).

Almost surely, 2^1312023303 is an apocalyptic number.

1312023303 is a deficient number, since it is larger than the sum of its proper divisors (583121481).

1312023303 is a wasteful number, since it uses less digits than its factorization.

1312023303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145780373 (or 145780370 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1312023303 is about 36221.8622243529. The cubic root of 1312023303 is about 1094.7472163094.

Adding to 1312023303 its reverse (3033202131), we get a palindrome (4345225434).

The spelling of 1312023303 in words is "one billion, three hundred twelve million, twenty-three thousand, three hundred three".