21110103023 has 8 divisors (see below), whose sum is σ = 22031298000. Its totient is φ = 20201792128.

The previous prime is 21110103019. The next prime is 21110103031. The reversal of 21110103023 is 32030101112.

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 21110103023 - 2² = 21110103019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21110102989 and 21110103007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110103523) 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, 3217673 + ... + 3224226.

It is an arithmetic number, because the mean of its divisors is an integer number (2753912250).

Almost surely, 2^21110103023 is an apocalyptic number.

21110103023 is a deficient number, since it is larger than the sum of its proper divisors (921194977).

21110103023 is a wasteful number, since it uses less digits than its factorization.

21110103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442041.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21110103023 its reverse (32030101112), we get a palindrome (53140204135).

The spelling of 21110103023 in words is "twenty-one billion, one hundred ten million, one hundred three thousand, twenty-three".