1312350431 has 8 divisors (see below), whose sum is σ = 1500508800. Its totient is φ = 1124362008.

The previous prime is 1312350409. The next prime is 1312350461. The reversal of 1312350431 is 1340532131.

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

It is not a de Polignac number, because 1312350431 - 2¹⁸ = 1312088287 is a prime.

It is a super-2 number, since 2×1312350431² = 3444527307491771522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312350397 and 1312350406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312350461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25481 + ... + 57218.

It is an arithmetic number, because the mean of its divisors is an integer number (187563600).

Almost surely, 2^1312350431 is an apocalyptic number.

1312350431 is a deficient number, since it is larger than the sum of its proper divisors (188158369).

1312350431 is an equidigital number, since it uses as much as digits as its factorization.

1312350431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84973.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1312350431 is about 36226.3775583483. The cubic root of 1312350431 is about 1094.8381935318.

Adding to 1312350431 its reverse (1340532131), we get a palindrome (2652882562).

The spelling of 1312350431 in words is "one billion, three hundred twelve million, three hundred fifty thousand, four hundred thirty-one".