1312013433 has 8 divisors (see below), whose sum is σ = 1759016896. Its totient is φ = 869842800.

The previous prime is 1312013419. The next prime is 1312013459. The reversal of 1312013433 is 3343102131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312013433 - 2⁵ = 1312013401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312015433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207573 + ... + 1208658.

It is an arithmetic number, because the mean of its divisors is an integer number (219877112).

Almost surely, 2^1312013433 is an apocalyptic number.

It is an amenable number.

1312013433 is a deficient number, since it is larger than the sum of its proper divisors (447003463).

1312013433 is a wasteful number, since it uses less digits than its factorization.

1312013433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416415.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1312013433 is about 36221.7259804113. The cubic root of 1312013433 is about 1094.7444711391.

Adding to 1312013433 its reverse (3343102131), we get a palindrome (4655115564).

The spelling of 1312013433 in words is "one billion, three hundred twelve million, thirteen thousand, four hundred thirty-three".