21110425023 has 8 divisors (see below), whose sum is σ = 28149939328. Its totient is φ = 14072263704.

The previous prime is 21110425003. The next prime is 21110425051. The reversal of 21110425023 is 32052401112.

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

It is not a de Polignac number, because 21110425023 - 2¹² = 21110420927 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 (21110425003) 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, 301261 + ... + 364662.

It is an arithmetic number, because the mean of its divisors is an integer number (3518742416).

Almost surely, 2^21110425023 is an apocalyptic number.

21110425023 is a deficient number, since it is larger than the sum of its proper divisors (7039514305).

21110425023 is a wasteful number, since it uses less digits than its factorization.

21110425023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676493.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21110425023 its reverse (32052401112), we get a palindrome (53162826135).

The spelling of 21110425023 in words is "twenty-one billion, one hundred ten million, four hundred twenty-five thousand, twenty-three".