21423330102 has 16 divisors (see below), whose sum is σ = 42867555120. Its totient is φ = 7137627552.

The previous prime is 21423330083. The next prime is 21423330119. The reversal of 21423330102 is 20103332412.

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, 857277 + ... + 881912.

It is an arithmetic number, because the mean of its divisors is an integer number (2679222195).

Almost surely, 2^21423330102 is an apocalyptic number.

21423330102 is an abundant number, since it is smaller than the sum of its proper divisors (21444225018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21423330102 is a wasteful number, since it uses less digits than its factorization.

21423330102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741247.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21423330102 its reverse (20103332412), we get a palindrome (41526662514).

The spelling of 21423330102 in words is "twenty-one billion, four hundred twenty-three million, three hundred thirty thousand, one hundred two".