23120351530 has 32 divisors (see below), whose sum is σ = 41948410896. Its totient is φ = 9174503424.

The previous prime is 23120351519. The next prime is 23120351549. The reversal of 23120351530 is 3515302132.

It can be written as a sum of positive squares in 8 ways, for example, as 4894541521 + 18225810009 = 69961^2 + 135003^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23120351495 and 23120351504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2429742 + ... + 2439238.

Almost surely, 2^23120351530 is an apocalyptic number.

23120351530 is a deficient number, since it is larger than the sum of its proper divisors (18828059366).

23120351530 is a wasteful number, since it uses less digits than its factorization.

23120351530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11418.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 23120351530 its reverse (3515302132), we get a palindrome (26635653662).

The spelling of 23120351530 in words is "twenty-three billion, one hundred twenty million, three hundred fifty-one thousand, five hundred thirty".