1313440434642 has 64 divisors (see below), whose sum is σ = 3134021382144. Its totient is φ = 358798714560.

The previous prime is 1313440434623. The next prime is 1313440434679. The reversal of 1313440434642 is 2464340443131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313440434642.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1971003 + ... + 2551809.

It is an arithmetic number, because the mean of its divisors is an integer number (48969084096).

Almost surely, 2^{1313440434642} is an apocalyptic number.

1313440434642 is an abundant number, since it is smaller than the sum of its proper divisors (1820580947502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313440434642 is a wasteful number, since it uses less digits than its factorization.

1313440434642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583183.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 1313440434642 its reverse (2464340443131), we get a palindrome (3777780877773).

The spelling of 1313440434642 in words is "one trillion, three hundred thirteen billion, four hundred forty million, four hundred thirty-four thousand, six hundred forty-two".