21110512035 has 16 divisors (see below), whose sum is σ = 34092493056. Its totient is φ = 11153715168.

The previous prime is 21110512021. The next prime is 21110512037. The reversal of 21110512035 is 53021501112.

It is not a de Polignac number, because 21110512035 - 2²¹ = 21108414883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110512037) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6574879 + ... + 6578088.

It is an arithmetic number, because the mean of its divisors is an integer number (2130780816).

Almost surely, 2^21110512035 is an apocalyptic number.

21110512035 is a deficient number, since it is larger than the sum of its proper divisors (12981981021).

21110512035 is a wasteful number, since it uses less digits than its factorization.

21110512035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13153082.

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 21110512035 in words is "twenty-one billion, one hundred ten million, five hundred twelve thousand, thirty-five".