21230102 has 8 divisors (see below), whose sum is σ = 32872512. Its totient is φ = 10272600.

The previous prime is 21230047. The next prime is 21230123. The reversal of 21230102 is 20103212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171149 + ... + 171272.

It is an arithmetic number, because the mean of its divisors is an integer number (4109064).

Almost surely, 2^21230102 is an apocalyptic number.

21230102 is a deficient number, since it is larger than the sum of its proper divisors (11642410).

21230102 is a wasteful number, since it uses less digits than its factorization.

21230102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342454.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 21230102 is about 4607.6134820534. The cubic root of 21230102 is about 276.8964324119.

Adding to 21230102 its reverse (20103212), we get a palindrome (41333314).

The spelling of 21230102 in words is "twenty-one million, two hundred thirty thousand, one hundred two".