320120010131 has 4 divisors (see below), whose sum is σ = 331158631200. Its totient is φ = 309081389064.

The previous prime is 320120010121. The next prime is 320120010137. The reversal of 320120010131 is 131010021023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320120010131 is a prime.

It is a super-3 number, since 3×320120010131³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320120010137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5519310491 + ... + 5519310548.

It is an arithmetic number, because the mean of its divisors is an integer number (82789657800).

Almost surely, 2^320120010131 is an apocalyptic number.

320120010131 is a deficient number, since it is larger than the sum of its proper divisors (11038621069).

320120010131 is a wasteful number, since it uses less digits than its factorization.

320120010131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11038621068.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 320120010131 its reverse (131010021023), we get a palindrome (451130031154).

The spelling of 320120010131 in words is "three hundred twenty billion, one hundred twenty million, ten thousand, one hundred thirty-one".