21012023002330 has 32 divisors (see below), whose sum is σ = 38054021345280. Its totient is φ = 8353320877440.

The previous prime is 21012023002307. The next prime is 21012023002337. The reversal of 21012023002330 is 3320032021012.

It is a super-2 number, since 2×21012023002330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21012023002298 and 21012023002307.

It is not an unprimeable number, because it can be changed into a prime (21012023002337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8370234 + ... + 10587013.

It is an arithmetic number, because the mean of its divisors is an integer number (1189188167040).

Almost surely, 2^{21012023002330} is an apocalyptic number.

21012023002330 is a deficient number, since it is larger than the sum of its proper divisors (17041998342950).

21012023002330 is a wasteful number, since it uses less digits than its factorization.

21012023002330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18957934.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21012023002330 its reverse (3320032021012), we get a palindrome (24332055023342).

The spelling of 21012023002330 in words is "twenty-one trillion, twelve billion, twenty-three million, two thousand, three hundred thirty".