21107350034 has 16 divisors (see below), whose sum is σ = 32078699520. Its totient is φ = 10414591200.

The previous prime is 21107350009. The next prime is 21107350039. The reversal of 21107350034 is 43005370112.

It is a junction number, because it is equal to n+sod(n) for n = 21107349985 and 21107350012.

It is not an unprimeable number, because it can be changed into a prime (21107350039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274022 + ... + 342494.

It is an arithmetic number, because the mean of its divisors is an integer number (2004918720).

Almost surely, 2^21107350034 is an apocalyptic number.

21107350034 is a deficient number, since it is larger than the sum of its proper divisors (10971349486).

21107350034 is a wasteful number, since it uses less digits than its factorization.

21107350034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70505.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 21107350034 in words is "twenty-one billion, one hundred seven million, three hundred fifty thousand, thirty-four".