21023033002 has 8 divisors (see below), whose sum is σ = 31648393476. Its totient is φ = 10473568512.

The previous prime is 21023032993. The next prime is 21023033021. The reversal of 21023033002 is 20033032012.

It can be written as a sum of positive squares in 2 ways, for example, as 17656828641 + 3366204361 = 132879^2 + 58019^2 .

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

It is a super-2 number, since 2×21023033002² (a number of 21 digits) contains 22 as substring.

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, 18973303 + ... + 18974410.

Almost surely, 2^21023033002 is an apocalyptic number.

21023033002 is a deficient number, since it is larger than the sum of its proper divisors (10625360474).

21023033002 is a wasteful number, since it uses less digits than its factorization.

21023033002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37947992.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21023033002 its reverse (20033032012), we get a palindrome (41056065014).

The spelling of 21023033002 in words is "twenty-one billion, twenty-three million, thirty-three thousand, two".