21114100423 has 8 divisors (see below), whose sum is σ = 22743419328. Its totient is φ = 19485518304.

The previous prime is 21114100421. The next prime is 21114100451. The reversal of 21114100423 is 32400141112.

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 21114100423 - 2¹ = 21114100421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21114100423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114100421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123940 + ... + 239977.

It is an arithmetic number, because the mean of its divisors is an integer number (2842927416).

Almost surely, 2^21114100423 is an apocalyptic number.

21114100423 is a deficient number, since it is larger than the sum of its proper divisors (1629318905).

21114100423 is a wasteful number, since it uses less digits than its factorization.

21114100423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368393.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21114100423 its reverse (32400141112), we get a palindrome (53514241535).

The spelling of 21114100423 in words is "twenty-one billion, one hundred fourteen million, one hundred thousand, four hundred twenty-three".