320131132312031 has 8 divisors (see below), whose sum is σ = 320320713963600. Its totient is φ = 319941587486080.

The previous prime is 320131132312001. The next prime is 320131132312081. The reversal of 320131132312031 is 130213231131023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320131132312031 - 2³⁰ = 320130058570207 is a prime.

It is a super-2 number, since 2×320131132312031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320131132312001) 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, 8194805 + ... + 26597313.

It is an arithmetic number, because the mean of its divisors is an integer number (40040089245450).

Almost surely, 2^{320131132312031} is an apocalyptic number.

320131132312031 is a deficient number, since it is larger than the sum of its proper divisors (189581651569).

320131132312031 is a wasteful number, since it uses less digits than its factorization.

320131132312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412809.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 320131132312031 its reverse (130213231131023), we get a palindrome (450344363443054).

The spelling of 320131132312031 in words is "three hundred twenty trillion, one hundred thirty-one billion, one hundred thirty-two million, three hundred twelve thousand, thirty-one".