1320712142 has 16 divisors (see below), whose sum is σ = 2050248240. Its totient is φ = 637315392.

The previous prime is 1320712123. The next prime is 1320712153. The reversal of 1320712142 is 2412170231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238133 + ... + 243615.

It is an arithmetic number, because the mean of its divisors is an integer number (128140515).

Almost surely, 2^1320712142 is an apocalyptic number.

1320712142 is a deficient number, since it is larger than the sum of its proper divisors (729536098).

1320712142 is a wasteful number, since it uses less digits than its factorization.

1320712142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1320712142 is about 36341.6034593962. The cubic root of 1320712142 is about 1097.1585457842.

Adding to 1320712142 its reverse (2412170231), we get a palindrome (3732882373).

The spelling of 1320712142 in words is "one billion, three hundred twenty million, seven hundred twelve thousand, one hundred forty-two".