21024325202 has 4 divisors (see below), whose sum is σ = 31536487806. Its totient is φ = 10512162600.

The previous prime is 21024325123. The next prime is 21024325297. The reversal of 21024325202 is 20252342012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14952642961 + 6071682241 = 122281^2 + 77921^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5256081299 + ... + 5256081302.

Almost surely, 2^21024325202 is an apocalyptic number.

21024325202 is a deficient number, since it is larger than the sum of its proper divisors (10512162604).

21024325202 is a wasteful number, since it uses less digits than its factorization.

21024325202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512162603.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 21024325202 its reverse (20252342012), we get a palindrome (41276667214).

The spelling of 21024325202 in words is "twenty-one billion, twenty-four million, three hundred twenty-five thousand, two hundred two".