1313143442 has 16 divisors (see below), whose sum is σ = 2121880320. Its totient is φ = 605880912.

The previous prime is 1313143441. The next prime is 1313143453. The reversal of 1313143442 is 2443413131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1313143441) 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, 116909 + ... + 127647.

It is an arithmetic number, because the mean of its divisors is an integer number (132617520).

Almost surely, 2^1313143442 is an apocalyptic number.

1313143442 is a deficient number, since it is larger than the sum of its proper divisors (808736878).

1313143442 is a wasteful number, since it uses less digits than its factorization.

1313143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15457.

The product of its digits is 3456, while the sum is 26.

The square root of 1313143442 is about 36237.3211206347. The cubic root of 1313143442 is about 1095.0586742536.

Adding to 1313143442 its reverse (2443413131), we get a palindrome (3756556573).

The spelling of 1313143442 in words is "one billion, three hundred thirteen million, one hundred forty-three thousand, four hundred forty-two".