23411220521 has 8 divisors (see below), whose sum is σ = 25216337664. Its totient is φ = 21606711120.

The previous prime is 23411220499. The next prime is 23411220529. The reversal of 23411220521 is 12502211432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23411220521 - 2²² = 23407026217 is a prime.

It is a super-2 number, since 2×23411220521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23411220529) 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 7 ways as a sum of consecutive naturals, for example, 70295 + ... + 227516.

It is an arithmetic number, because the mean of its divisors is an integer number (3152042208).

Almost surely, 2^23411220521 is an apocalyptic number.

It is an amenable number.

23411220521 is a deficient number, since it is larger than the sum of its proper divisors (1805117143).

23411220521 is a wasteful number, since it uses less digits than its factorization.

23411220521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303871.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 23411220521 its reverse (12502211432), we get a palindrome (35913431953).

The spelling of 23411220521 in words is "twenty-three billion, four hundred eleven million, two hundred twenty thousand, five hundred twenty-one".