1312432311 has 8 divisors (see below), whose sum is σ = 1750311664. Its totient is φ = 874753920.

The previous prime is 1312432307. The next prime is 1312432313. The reversal of 1312432311 is 1132342131.

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

It is not a de Polignac number, because 1312432311 - 2² = 1312432307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312432313) 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, 34276 + ... + 61641.

It is an arithmetic number, because the mean of its divisors is an integer number (218788958).

Almost surely, 2^1312432311 is an apocalyptic number.

1312432311 is a deficient number, since it is larger than the sum of its proper divisors (437879353).

1312432311 is an equidigital number, since it uses as much as digits as its factorization.

1312432311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100481.

The product of its digits is 432, while the sum is 21.

The square root of 1312432311 is about 36227.5076564756. The cubic root of 1312432311 is about 1094.8609627264.

Adding to 1312432311 its reverse (1132342131), we get a palindrome (2444774442).

The spelling of 1312432311 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, three hundred eleven".