1312443142339 has 32 divisors (see below), whose sum is σ = 1529620070400. Its totient is φ = 1102854281760.

The previous prime is 1312443142301. The next prime is 1312443142363. The reversal of 1312443142339 is 9332413442131.

It is a happy number.

It is not a de Polignac number, because 1312443142339 - 2³¹ = 1310295658691 is a prime.

It is a super-2 number, since 2×1312443142339² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312443142369) 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, 290425522 + ... + 290430040.

It is an arithmetic number, because the mean of its divisors is an integer number (47800627200).

Almost surely, 2^{1312443142339} is an apocalyptic number.

1312443142339 is a deficient number, since it is larger than the sum of its proper divisors (217176928061).

1312443142339 is a wasteful number, since it uses less digits than its factorization.

1312443142339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7423.

The product of its digits is 186624, while the sum is 40.

The spelling of 1312443142339 in words is "one trillion, three hundred twelve billion, four hundred forty-three million, one hundred forty-two thousand, three hundred thirty-nine".