21103414004 has 6 divisors (see below), whose sum is σ = 36930974514. Its totient is φ = 10551707000.

The previous prime is 21103413973. The next prime is 21103414009. The reversal of 21103414004 is 40041430112.

It can be written as a sum of positive squares in only one way, i.e., 15724658404 + 5378755600 = 125398^2 + 73340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103414009) by changing a digit.

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 as a sum of consecutive naturals, namely, 2637926747 + ... + 2637926754.

It is an arithmetic number, because the mean of its divisors is an integer number (6155162419).

Almost surely, 2^21103414004 is an apocalyptic number.

It is an amenable number.

21103414004 is a deficient number, since it is larger than the sum of its proper divisors (15827560510).

21103414004 is a wasteful number, since it uses less digits than its factorization.

21103414004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275853505 (or 5275853503 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21103414004 its reverse (40041430112), we get a palindrome (61144844116).

The spelling of 21103414004 in words is "twenty-one billion, one hundred three million, four hundred fourteen thousand, four".