21114443102 has 16 divisors (see below), whose sum is σ = 31753369440. Its totient is φ = 10530010368.

The previous prime is 21114443093. The next prime is 21114443111. The reversal of 21114443102 is 20134441112.

It is an interprime number because it is at equal distance from previous prime (21114443093) and next prime (21114443111).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349674 + ... + 2358642.

It is an arithmetic number, because the mean of its divisors is an integer number (1984585590).

Almost surely, 2^21114443102 is an apocalyptic number.

21114443102 is a deficient number, since it is larger than the sum of its proper divisors (10638926338).

21114443102 is a wasteful number, since it uses less digits than its factorization.

21114443102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11875.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21114443102 its reverse (20134441112), we get a palindrome (41248884214).

The spelling of 21114443102 in words is "twenty-one billion, one hundred fourteen million, four hundred forty-three thousand, one hundred two".