21113003234 has 8 divisors (see below), whose sum is σ = 31670232768. Its totient is φ = 10556258980.

The previous prime is 21113003221. The next prime is 21113003237. The reversal of 21113003234 is 43230031112.

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

It is not an unprimeable number, because it can be changed into a prime (21113003237) 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, 20699 + ... + 206529.

It is an arithmetic number, because the mean of its divisors is an integer number (3958779096).

Almost surely, 2^21113003234 is an apocalyptic number.

21113003234 is a deficient number, since it is larger than the sum of its proper divisors (10557229534).

21113003234 is a wasteful number, since it uses less digits than its factorization.

21113003234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242640.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21113003234 its reverse (43230031112), we get a palindrome (64343034346).

The spelling of 21113003234 in words is "twenty-one billion, one hundred thirteen million, three thousand, two hundred thirty-four".