20302023203 has 64 divisors (see below), whose sum is σ = 29438484480. Its totient is φ = 13491878400.

The previous prime is 20302023191. The next prime is 20302023223. The reversal of 20302023203 is 30232020302.

It is not a de Polignac number, because 20302023203 - 2⁸ = 20302022947 is a prime.

It is a super-2 number, since 2×20302023203² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (20302023223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 554288 + ... + 589778.

It is an arithmetic number, because the mean of its divisors is an integer number (459976320).

Almost surely, 2^20302023203 is an apocalyptic number.

20302023203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20302023203 is a deficient number, since it is larger than the sum of its proper divisors (9136461277).

20302023203 is a wasteful number, since it uses less digits than its factorization.

20302023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35568.

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20302023203 its reverse (30232020302), we get a palindrome (50534043505).

The spelling of 20302023203 in words is "twenty billion, three hundred two million, twenty-three thousand, two hundred three".