20332021019 has 4 divisors (see below), whose sum is σ = 20332341120. Its totient is φ = 20331700920.

The previous prime is 20332021013. The next prime is 20332021037. The reversal of 20332021019 is 91012023302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332021019 is a prime.

It is a super-2 number, since 2×20332021019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20332020985 and 20332021003.

It is not an unprimeable number, because it can be changed into a prime (20332021013) 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 3 ways as a sum of consecutive naturals, for example, 29012 + ... + 203729.

It is an arithmetic number, because the mean of its divisors is an integer number (5083085280).

Almost surely, 2^20332021019 is an apocalyptic number.

20332021019 is a deficient number, since it is larger than the sum of its proper divisors (320101).

20332021019 is an equidigital number, since it uses as much as digits as its factorization.

20332021019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320100.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 20332021019 in words is "twenty billion, three hundred thirty-two million, twenty-one thousand, nineteen".