1312040433 has 32 divisors (see below), whose sum is σ = 2023781760. Its totient is φ = 747253760.

The previous prime is 1312040413. The next prime is 1312040437. The reversal of 1312040433 is 3340402131.

It is not a de Polignac number, because 1312040433 - 2²¹ = 1309943281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312040437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 479413 + ... + 482141.

It is an arithmetic number, because the mean of its divisors is an integer number (63243180).

Almost surely, 2^1312040433 is an apocalyptic number.

It is an amenable number.

1312040433 is a deficient number, since it is larger than the sum of its proper divisors (711741327).

1312040433 is a wasteful number, since it uses less digits than its factorization.

1312040433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617.

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

The square root of 1312040433 is about 36222.0986829863. The cubic root of 1312040433 is about 1094.7519806907.

Adding to 1312040433 its reverse (3340402131), we get a palindrome (4652442564).

The spelling of 1312040433 in words is "one billion, three hundred twelve million, forty thousand, four hundred thirty-three".