20219637203 has 16 divisors (see below), whose sum is σ = 22116036096. Its totient is φ = 18429956160.

The previous prime is 20219637149. The next prime is 20219637223. The reversal of 20219637203 is 30273691202.

It is a cyclic number.

It is not a de Polignac number, because 20219637203 - 2¹² = 20219633107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20219637223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208775 + ... + 289872.

It is an arithmetic number, because the mean of its divisors is an integer number (1382252256).

Almost surely, 2^20219637203 is an apocalyptic number.

20219637203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20219637203 is a deficient number, since it is larger than the sum of its proper divisors (1896398893).

20219637203 is a wasteful number, since it uses less digits than its factorization.

20219637203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498754.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 20219637203 in words is "twenty billion, two hundred nineteen million, six hundred thirty-seven thousand, two hundred three".