23120335515 has 32 divisors (see below), whose sum is σ = 37172805120. Its totient is φ = 12270854144.

The previous prime is 23120335499. The next prime is 23120335519. The reversal of 23120335515 is 51553302132.

It is a cyclic number.

It is not a de Polignac number, because 23120335515 - 2⁴ = 23120335499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23120335519) 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, 5082472 + ... + 5087018.

It is an arithmetic number, because the mean of its divisors is an integer number (1161650160).

Almost surely, 2^23120335515 is an apocalyptic number.

23120335515 is a deficient number, since it is larger than the sum of its proper divisors (14052469605).

23120335515 is a wasteful number, since it uses less digits than its factorization.

23120335515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131.

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 23120335515 its reverse (51553302132), we get a palindrome (74673637647).

The spelling of 23120335515 in words is "twenty-three billion, one hundred twenty million, three hundred thirty-five thousand, five hundred fifteen".