1312314231405 has 16 divisors (see below), whose sum is σ = 2104379179200. Its totient is φ = 698342120448.

The previous prime is 1312314231337. The next prime is 1312314231407. The reversal of 1312314231405 is 5041324132131.

It is not a de Polignac number, because 1312314231405 - 2⁸ = 1312314231149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312314231407) 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, 97418227 + ... + 97431696.

It is an arithmetic number, because the mean of its divisors is an integer number (131523698700).

Almost surely, 2^{1312314231405} is an apocalyptic number.

1312314231405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312314231405 is a deficient number, since it is larger than the sum of its proper divisors (792064947795).

1312314231405 is a wasteful number, since it uses less digits than its factorization.

1312314231405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194850380.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1312314231405 its reverse (5041324132131), we get a palindrome (6353638363536).

The spelling of 1312314231405 in words is "one trillion, three hundred twelve billion, three hundred fourteen million, two hundred thirty-one thousand, four hundred five".