102320331131 has 4 divisors (see below), whose sum is σ = 102320994000. Its totient is φ = 102319668264.

The previous prime is 102320331121. The next prime is 102320331151. The reversal of 102320331131 is 131133023201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 131133023201 = 56417 ⋅2324353.

It is a cyclic number.

It is not a de Polignac number, because 102320331131 - 2⁶ = 102320331067 is a prime.

It is a super-2 number, since 2×102320331131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102320331101) 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, 35570 + ... + 453768.

It is an arithmetic number, because the mean of its divisors is an integer number (25580248500).

Almost surely, 2^102320331131 is an apocalyptic number.

102320331131 is a deficient number, since it is larger than the sum of its proper divisors (662869).

102320331131 is an equidigital number, since it uses as much as digits as its factorization.

102320331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662868.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 102320331131 its reverse (131133023201), we get a palindrome (233453354332).

The spelling of 102320331131 in words is "one hundred two billion, three hundred twenty million, three hundred thirty-one thousand, one hundred thirty-one".