21131012030033 has 16 divisors (see below), whose sum is σ = 22850349225984. Its totient is φ = 19464611988480.

The previous prime is 21131012030027. The next prime is 21131012030143. The reversal of 21131012030033 is 33003021013112.

It is a cyclic number.

It is not a de Polignac number, because 21131012030033 - 2¹⁰ = 21131012029009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21131012029987 and 21131012030014.

It is not an unprimeable number, because it can be changed into a prime (21131012030833) 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, 96255353 + ... + 96474633.

It is an arithmetic number, because the mean of its divisors is an integer number (1428146826624).

Almost surely, 2^{21131012030033} is an apocalyptic number.

It is an amenable number.

21131012030033 is a deficient number, since it is larger than the sum of its proper divisors (1719337195951).

21131012030033 is a wasteful number, since it uses less digits than its factorization.

21131012030033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339952.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21131012030033 its reverse (33003021013112), we get a palindrome (54134033043145).

The spelling of 21131012030033 in words is "twenty-one trillion, one hundred thirty-one billion, twelve million, thirty thousand, thirty-three".