23102001320 has 48 divisors (see below), whose sum is σ = 54337791060. Its totient is φ = 8839018496.

The previous prime is 23102001317. The next prime is 23102001347. The reversal of 23102001320 is 2310020132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19031306116 + 4070695204 = 137954^2 + 63802^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23102001295 and 23102001304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524729 + ... + 567048.

Almost surely, 2^23102001320 is an apocalyptic number.

23102001320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23102001320 is an abundant number, since it is smaller than the sum of its proper divisors (31235789740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23102001320 is a wasteful number, since it uses less digits than its factorization.

23102001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091834 (or 1091807 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23102001320 its reverse (2310020132), we get a palindrome (25412021452).

The spelling of 23102001320 in words is "twenty-three billion, one hundred two million, one thousand, three hundred twenty".