21032101019 has 8 divisors (see below), whose sum is σ = 21066746880. Its totient is φ = 20997484200.

The previous prime is 21032101007. The next prime is 21032101037. The reversal of 21032101019 is 91010123012.

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 21032101019 - 2⁸ = 21032100763 is a prime.

It is a super-2 number, since 2×21032101019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032101619) 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, 1788842 + ... + 1800560.

It is an arithmetic number, because the mean of its divisors is an integer number (2633343360).

Almost surely, 2^21032101019 is an apocalyptic number.

21032101019 is a deficient number, since it is larger than the sum of its proper divisors (34645861).

21032101019 is a wasteful number, since it uses less digits than its factorization.

21032101019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14521.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 21032101019 in words is "twenty-one billion, thirty-two million, one hundred one thousand, nineteen".