1312322633 has 16 divisors (see below), whose sum is σ = 1425029760. Its totient is φ = 1203691776.

The previous prime is 1312322567. The next prime is 1312322653. The reversal of 1312322633 is 3362232131.

It is a happy number.

It is not a de Polignac number, because 1312322633 - 2⁸ = 1312322377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312322653) 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, 370316 + ... + 373842.

It is an arithmetic number, because the mean of its divisors is an integer number (89064360).

Almost surely, 2^1312322633 is an apocalyptic number.

It is an amenable number.

1312322633 is a deficient number, since it is larger than the sum of its proper divisors (112707127).

1312322633 is a wasteful number, since it uses less digits than its factorization.

1312322633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096.

The product of its digits is 3888, while the sum is 26.

The square root of 1312322633 is about 36225.9938856065. The cubic root of 1312322633 is about 1094.8304632472.

Adding to 1312322633 its reverse (3362232131), we get a palindrome (4674554764).

The spelling of 1312322633 in words is "one billion, three hundred twelve million, three hundred twenty-two thousand, six hundred thirty-three".