21120011403 has 8 divisors (see below), whose sum is σ = 28921096848. Its totient is φ = 13699466784.

The previous prime is 21120011401. The next prime is 21120011449. The reversal of 21120011403 is 30411002112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21120011403 - 2¹ = 21120011401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21120011401) 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 in 7 ways as a sum of consecutive naturals, for example, 95135076 + ... + 95135297.

It is an arithmetic number, because the mean of its divisors is an integer number (3615137106).

Almost surely, 2^21120011403 is an apocalyptic number.

21120011403 is a deficient number, since it is larger than the sum of its proper divisors (7801085445).

21120011403 is a wasteful number, since it uses less digits than its factorization.

21120011403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190270413.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21120011403 its reverse (30411002112), we get a palindrome (51531013515).

The spelling of 21120011403 in words is "twenty-one billion, one hundred twenty million, eleven thousand, four hundred three".