21113100410403 has 16 divisors (see below), whose sum is σ = 28767711430656. Its totient is φ = 13767318950400.

The previous prime is 21113100410401. The next prime is 21113100410411. The reversal of 21113100410403 is 30401400131112.

It is not a de Polignac number, because 21113100410403 - 2¹ = 21113100410401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21113100410403.

It is not an unprimeable number, because it can be changed into a prime (21113100410401) 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, 46538251 + ... + 46989732.

It is an arithmetic number, because the mean of its divisors is an integer number (1797981964416).

Almost surely, 2^{21113100410403} is an apocalyptic number.

21113100410403 is a deficient number, since it is larger than the sum of its proper divisors (7654611020253).

21113100410403 is a wasteful number, since it uses less digits than its factorization.

21113100410403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93529634.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21113100410403 its reverse (30401400131112), we get a palindrome (51514500541515).

The spelling of 21113100410403 in words is "twenty-one trillion, one hundred thirteen billion, one hundred million, four hundred ten thousand, four hundred three".