21030330123292 has 24 divisors (see below), whose sum is σ = 42060808060544. Its totient is φ = 9012966949872.

The previous prime is 21030330123239. The next prime is 21030330123293. The reversal of 21030330123292 is 29232103303012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030330123293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7926403 + ... + 10241509.

Almost surely, 2^{21030330123292} is an apocalyptic number.

It is an amenable number.

21030330123292 is an abundant number, since it is smaller than the sum of its proper divisors (21030477937252).

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

21030330123292 is a wasteful number, since it uses less digits than its factorization.

21030330123292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639545 (or 2639543 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 21030330123292 in words is "twenty-one trillion, thirty billion, three hundred thirty million, one hundred twenty-three thousand, two hundred ninety-two".