23240200111421 has 4 divisors (see below), whose sum is σ = 23241311944032. Its totient is φ = 23239088278812.

The previous prime is 23240200111411. The next prime is 23240200111493. The reversal of 23240200111421 is 12411100204232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23240200111421 - 2¹⁸ = 23240199849277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23240200111411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555884951 + ... + 555926756.

It is an arithmetic number, because the mean of its divisors is an integer number (5810327986008).

Almost surely, 2^{23240200111421} is an apocalyptic number.

It is an amenable number.

23240200111421 is a deficient number, since it is larger than the sum of its proper divisors (1111832611).

23240200111421 is a wasteful number, since it uses less digits than its factorization.

23240200111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111832610.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 23240200111421 its reverse (12411100204232), we get a palindrome (35651300315653).

The spelling of 23240200111421 in words is "twenty-three trillion, two hundred forty billion, two hundred million, one hundred eleven thousand, four hundred twenty-one".