1311256422634 has 8 divisors (see below), whose sum is σ = 2008733243328. Its totient is φ = 641678674860.

The previous prime is 1311256422599. The next prime is 1311256422659. The reversal of 1311256422634 is 4362246521131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6974768112 + ... + 6974768299.

It is an arithmetic number, because the mean of its divisors is an integer number (251091655416).

Almost surely, 2^{1311256422634} is an apocalyptic number.

1311256422634 is a deficient number, since it is larger than the sum of its proper divisors (697476820694).

1311256422634 is a wasteful number, since it uses less digits than its factorization.

1311256422634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13949536460.

The product of its digits is 207360, while the sum is 40.

The spelling of 1311256422634 in words is "one trillion, three hundred eleven billion, two hundred fifty-six million, four hundred twenty-two thousand, six hundred thirty-four".