21131033313032 has 16 divisors (see below), whose sum is σ = 39621326418000. Its totient is φ = 10565346268240.

The previous prime is 21131033313029. The next prime is 21131033313073. The reversal of 21131033313032 is 23031333013112.

It is a junction number, because it is equal to n+sod(n) for n = 21131033312992 and 21131033313010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20770694 + ... + 21764277.

It is an arithmetic number, because the mean of its divisors is an integer number (2476332901125).

Almost surely, 2^{21131033313032} is an apocalyptic number.

It is an amenable number.

21131033313032 is a deficient number, since it is larger than the sum of its proper divisors (18490293104968).

21131033313032 is a wasteful number, since it uses less digits than its factorization.

21131033313032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42597076 (or 42597072 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 21131033313032 its reverse (23031333013112), we get a palindrome (44162366326144).

The spelling of 21131033313032 in words is "twenty-one trillion, one hundred thirty-one billion, thirty-three million, three hundred thirteen thousand, thirty-two".