21411303004 has 48 divisors (see below), whose sum is σ = 48829411008. Its totient is φ = 7972144128.

The previous prime is 21411302963. The next prime is 21411303049. The reversal of 21411303004 is 40030311412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1723879 + ... + 1736254.

It is an arithmetic number, because the mean of its divisors is an integer number (1017279396).

Almost surely, 2^21411303004 is an apocalyptic number.

It is an amenable number.

21411303004 is an abundant number, since it is smaller than the sum of its proper divisors (27418108004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21411303004 is a wasteful number, since it uses less digits than its factorization.

21411303004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460174 (or 3460172 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21411303004 its reverse (40030311412), we get a palindrome (61441614416).

It can be divided in two parts, 21411 and 303004, that added together give a triangular number (324415 = T₈₀₅).

The spelling of 21411303004 in words is "twenty-one billion, four hundred eleven million, three hundred three thousand, four".