21003034033012 has 24 divisors (see below), whose sum is σ = 37073367430400. Its totient is φ = 10411024361760.

The previous prime is 21003034032973. The next prime is 21003034033013. The reversal of 21003034033012 is 21033043030012.

It is a super-2 number, since 2×21003034033012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003034033013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47407164 + ... + 47848147.

Almost surely, 2^{21003034033012} is an apocalyptic number.

It is an amenable number.

21003034033012 is a deficient number, since it is larger than the sum of its proper divisors (16070333397388).

21003034033012 is a wasteful number, since it uses less digits than its factorization.

21003034033012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95255791 (or 95255789 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21003034033012 its reverse (21033043030012), we get a palindrome (42036077063024).

The spelling of 21003034033012 in words is "twenty-one trillion, three billion, thirty-four million, thirty-three thousand, twelve".