21331130033030 has 128 divisors (see below), whose sum is σ = 41677929216000. Its totient is φ = 7834586872320.

The previous prime is 21331130032963. The next prime is 21331130033033. The reversal of 21331130033030 is 3033003113312.

It is a junction number, because it is equal to n+sod(n) for n = 21331130032987 and 21331130033005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21331130033033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2247506585 + ... + 2247516075.

It is an arithmetic number, because the mean of its divisors is an integer number (325608822000).

Almost surely, 2^{21331130033030} is an apocalyptic number.

21331130033030 is a deficient number, since it is larger than the sum of its proper divisors (20346799182970).

21331130033030 is a wasteful number, since it uses less digits than its factorization.

21331130033030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 21331130033030 its reverse (3033003113312), we get a palindrome (24364133146342).

The spelling of 21331130033030 in words is "twenty-one trillion, three hundred thirty-one billion, one hundred thirty million, thirty-three thousand, thirty".