21110032102 has 16 divisors (see below), whose sum is σ = 32229817200. Its totient is φ = 10367663328.

The previous prime is 21110032079. The next prime is 21110032121. The reversal of 21110032102 is 20123001112.

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, 178933 + ... + 272464.

It is an arithmetic number, because the mean of its divisors is an integer number (2014363575).

Almost surely, 2^21110032102 is an apocalyptic number.

21110032102 is a deficient number, since it is larger than the sum of its proper divisors (11119785098).

21110032102 is a wasteful number, since it uses less digits than its factorization.

21110032102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451815.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21110032102 its reverse (20123001112), we get a palindrome (41233033214).

The spelling of 21110032102 in words is "twenty-one billion, one hundred ten million, thirty-two thousand, one hundred two".