102302321331 has 32 divisors (see below), whose sum is σ = 156328634368. Its totient is φ = 58293872640.

The previous prime is 102302321257. The next prime is 102302321339. The reversal of 102302321331 is 133123203201.

It is not a de Polignac number, because 102302321331 - 2¹¹ = 102302319283 is a prime.

It is a super-2 number, since 2×102302321331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102302321298 and 102302321307.

It is not an unprimeable number, because it can be changed into a prime (102302321339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24882966 + ... + 24887076.

It is an arithmetic number, because the mean of its divisors is an integer number (4885269824).

Almost surely, 2^102302321331 is an apocalyptic number.

102302321331 is a deficient number, since it is larger than the sum of its proper divisors (54026313037).

102302321331 is a wasteful number, since it uses less digits than its factorization.

102302321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7171.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 102302321331 its reverse (133123203201), we get a palindrome (235425524532).

The spelling of 102302321331 in words is "one hundred two billion, three hundred two million, three hundred twenty-one thousand, three hundred thirty-one".