21103414123 has 8 divisors (see below), whose sum is σ = 23025792240. Its totient is φ = 19181683680.

The previous prime is 21103414109. The next prime is 21103414147. The reversal of 21103414123 is 32141430112.

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 21103414123 - 2¹³ = 21103405931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21103414094 and 21103414103.

It is not an unprimeable number, because it can be changed into a prime (21103414193) 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, 92488 + ... + 225301.

It is an arithmetic number, because the mean of its divisors is an integer number (2878224030).

Almost surely, 2^21103414123 is an apocalyptic number.

21103414123 is a deficient number, since it is larger than the sum of its proper divisors (1922378117).

21103414123 is a wasteful number, since it uses less digits than its factorization.

21103414123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323837.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21103414123 its reverse (32141430112), we get a palindrome (53244844235).

The spelling of 21103414123 in words is "twenty-one billion, one hundred three million, four hundred fourteen thousand, one hundred twenty-three".