23403455141520 has 80 divisors (see below), whose sum is σ = 74237936807232. Its totient is φ = 6095783662080.

The previous prime is 23403455141519. The next prime is 23403455141527. The reversal of 23403455141520 is 2514155430432.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×23403455141520² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23403455141527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1133878011 + ... + 1133898650.

Almost surely, 2^{23403455141520} is an apocalyptic number.

23403455141520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23403455141520 is an abundant number, since it is smaller than the sum of its proper divisors (50834481665712).

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

23403455141520 is a wasteful number, since it uses less digits than its factorization.

23403455141520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267776720 (or 2267776714 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 23403455141520 in words is "twenty-three trillion, four hundred three billion, four hundred fifty-five million, one hundred forty-one thousand, five hundred twenty".