1312223431013 has 16 divisors (see below), whose sum is σ = 1516275288000. Its totient is φ = 1122349152000.

The previous prime is 1312223430961. The next prime is 1312223431021. The reversal of 1312223431013 is 3101343222131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1312223431013 - 2¹⁸ = 1312223168869 is a prime.

It is a super-3 number, since 3×1312223431013³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312223431093) 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, 762263 + ... + 1790388.

It is an arithmetic number, because the mean of its divisors is an integer number (94767205500).

Almost surely, 2^{1312223431013} is an apocalyptic number.

It is an amenable number.

1312223431013 is a deficient number, since it is larger than the sum of its proper divisors (204051856987).

1312223431013 is a wasteful number, since it uses less digits than its factorization.

1312223431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555428.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1312223431013 its reverse (3101343222131), we get a palindrome (4413566653144).

The spelling of 1312223431013 in words is "one trillion, three hundred twelve billion, two hundred twenty-three million, four hundred thirty-one thousand, thirteen".