23451520354115 has 32 divisors (see below), whose sum is σ = 32544733395456. Its totient is φ = 15890578260480.

The previous prime is 23451520354061. The next prime is 23451520354159. The reversal of 23451520354115 is 51145302515432.

It is not a de Polignac number, because 23451520354115 - 2⁶ = 23451520354051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7647977 + ... + 10266186.

It is an arithmetic number, because the mean of its divisors is an integer number (1017022918608).

Almost surely, 2^{23451520354115} is an apocalyptic number.

23451520354115 is a deficient number, since it is larger than the sum of its proper divisors (9093213041341).

23451520354115 is a wasteful number, since it uses less digits than its factorization.

23451520354115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17914619.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 23451520354115 its reverse (51145302515432), we get a palindrome (74596822869547).

The spelling of 23451520354115 in words is "twenty-three trillion, four hundred fifty-one billion, five hundred twenty million, three hundred fifty-four thousand, one hundred fifteen".