21331033111330 has 16 divisors (see below), whose sum is σ = 38596885046784. Its totient is φ = 8487740923120.

The previous prime is 21331033111307. The next prime is 21331033111363. The reversal of 21331033111330 is 3311133013312.

It is a junction number, because it is equal to n+sod(n) for n = 21331033111295 and 21331033111304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5584038172 + ... + 5584041991.

It is an arithmetic number, because the mean of its divisors is an integer number (2412305315424).

Almost surely, 2^{21331033111330} is an apocalyptic number.

21331033111330 is a deficient number, since it is larger than the sum of its proper divisors (17265851935454).

21331033111330 is a wasteful number, since it uses less digits than its factorization.

21331033111330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11168080361.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 21331033111330 its reverse (3311133013312), we get a palindrome (24642166124642).

The spelling of 21331033111330 in words is "twenty-one trillion, three hundred thirty-one billion, thirty-three million, one hundred eleven thousand, three hundred thirty".