21140403110 has 16 divisors (see below), whose sum is σ = 38071759536. Its totient is φ = 8451931488.

The previous prime is 21140403101. The next prime is 21140403131. The reversal of 21140403110 is 1130404112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507689 + ... + 547748.

It is an arithmetic number, because the mean of its divisors is an integer number (2379484971).

Almost surely, 2^21140403110 is an apocalyptic number.

21140403110 is a deficient number, since it is larger than the sum of its proper divisors (16931356426).

21140403110 is a wasteful number, since it uses less digits than its factorization.

21140403110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057447.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21140403110 its reverse (1130404112), we get a palindrome (22270807222).

The spelling of 21140403110 in words is "twenty-one billion, one hundred forty million, four hundred three thousand, one hundred ten".