23420211220401 has 16 divisors (see below), whose sum is σ = 33064156605888. Its totient is φ = 14694888268800.

The previous prime is 23420211220363. The next prime is 23420211220429. The reversal of 23420211220401 is 10402211202432.

It is a de Polignac number, because none of the positive numbers 2^k-23420211220401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23420211220451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3010041 + ... + 7476681.

It is an arithmetic number, because the mean of its divisors is an integer number (2066509787868).

Almost surely, 2^{23420211220401} is an apocalyptic number.

It is an amenable number.

23420211220401 is a deficient number, since it is larger than the sum of its proper divisors (9643945385487).

23420211220401 is a wasteful number, since it uses less digits than its factorization.

23420211220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569472.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 23420211220401 its reverse (10402211202432), we get a palindrome (33822422422833).

The spelling of 23420211220401 in words is "twenty-three trillion, four hundred twenty billion, two hundred eleven million, two hundred twenty thousand, four hundred one".