1313043243402 has 16 divisors (see below), whose sum is σ = 2864821622112. Its totient is φ = 397891891920.

The previous prime is 1313043243359. The next prime is 1313043243403. The reversal of 1313043243402 is 2043423403131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313043243402.

It is not an unprimeable number, because it can be changed into a prime (1313043243403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9947297233 + ... + 9947297364.

It is an arithmetic number, because the mean of its divisors is an integer number (179051351382).

Almost surely, 2^{1313043243402} is an apocalyptic number.

1313043243402 is an abundant number, since it is smaller than the sum of its proper divisors (1551778378710).

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

1313043243402 is a wasteful number, since it uses less digits than its factorization.

1313043243402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19894594613.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1313043243402 its reverse (2043423403131), we get a palindrome (3356466646533).

The spelling of 1313043243402 in words is "one trillion, three hundred thirteen billion, forty-three million, two hundred forty-three thousand, four hundred two".