21110149259 has 8 divisors (see below), whose sum is σ = 21510610992. Its totient is φ = 20709767520.

The previous prime is 21110149237. The next prime is 21110149273. The reversal of 21110149259 is 95294101112.

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

It is a cyclic number.

It is not a de Polignac number, because 21110149259 - 2²⁴ = 21093372043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110149859) 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, 1007924 + ... + 1028654.

It is an arithmetic number, because the mean of its divisors is an integer number (2688826374).

Almost surely, 2^21110149259 is an apocalyptic number.

21110149259 is a deficient number, since it is larger than the sum of its proper divisors (400461733).

21110149259 is a wasteful number, since it uses less digits than its factorization.

21110149259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39997.

The product of its (nonzero) digits is 6480, while the sum is 35.

The spelling of 21110149259 in words is "twenty-one billion, one hundred ten million, one hundred forty-nine thousand, two hundred fifty-nine".