1320679131 has 16 divisors (see below), whose sum is σ = 1782535680. Its totient is φ = 869679200.

The previous prime is 1320679127. The next prime is 1320679141. The reversal of 1320679131 is 1319760231.

It is a cyclic number.

It is not a de Polignac number, because 1320679131 - 2² = 1320679127 is a prime.

It is a super-2 number, since 2×1320679131² = 3488386734117830322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320679092 and 1320679101.

It is not an unprimeable number, because it can be changed into a prime (1320679141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129310 + ... + 139148.

It is an arithmetic number, because the mean of its divisors is an integer number (111408480).

Almost surely, 2^1320679131 is an apocalyptic number.

1320679131 is a deficient number, since it is larger than the sum of its proper divisors (461856549).

1320679131 is a wasteful number, since it uses less digits than its factorization.

1320679131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10386.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1320679131 is about 36341.1492801205. The cubic root of 1320679131 is about 1097.1494046042.

The spelling of 1320679131 in words is "one billion, three hundred twenty million, six hundred seventy-nine thousand, one hundred thirty-one".