1312204233 has 16 divisors (see below), whose sum is σ = 1788272640. Its totient is φ = 855499536.

The previous prime is 1312204213. The next prime is 1312204247. The reversal of 1312204233 is 3324022131.

It is not a de Polignac number, because 1312204233 - 2⁶ = 1312204169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312204213) 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, 217978 + ... + 223916.

It is an arithmetic number, because the mean of its divisors is an integer number (111767040).

Almost surely, 2^1312204233 is an apocalyptic number.

It is an amenable number.

1312204233 is a deficient number, since it is larger than the sum of its proper divisors (476068407).

1312204233 is a wasteful number, since it uses less digits than its factorization.

1312204233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1312204233 is about 36224.3596630776. The cubic root of 1312204233 is about 1094.7975364292.

Adding to 1312204233 its reverse (3324022131), we get a palindrome (4636226364).

The spelling of 1312204233 in words is "one billion, three hundred twelve million, two hundred four thousand, two hundred thirty-three".