1320043142 has 16 divisors (see below), whose sum is σ = 2163142800. Its totient is φ = 599166240.

The previous prime is 1320043139. The next prime is 1320043169. The reversal of 1320043142 is 2413400231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26717 + ... + 57912.

It is an arithmetic number, because the mean of its divisors is an integer number (135196425).

Almost surely, 2^1320043142 is an apocalyptic number.

1320043142 is a deficient number, since it is larger than the sum of its proper divisors (843099658).

1320043142 is a wasteful number, since it uses less digits than its factorization.

1320043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85351.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1320043142 is about 36332.3979665532. The cubic root of 1320043142 is about 1096.9732611404.

Adding to 1320043142 its reverse (2413400231), we get a palindrome (3733443373).

The spelling of 1320043142 in words is "one billion, three hundred twenty million, forty-three thousand, one hundred forty-two".