20003352231 has 4 divisors (see below), whose sum is σ = 26671136312. Its totient is φ = 13335568152.

The previous prime is 20003352211. The next prime is 20003352253. The reversal of 20003352231 is 13225330002.

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

It is not a de Polignac number, because 20003352231 - 2¹¹ = 20003350183 is a prime.

It is a super-2 number, since 2×20003352231² (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 = 20003352198 and 20003352207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003352211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333892036 + ... + 3333892041.

It is an arithmetic number, because the mean of its divisors is an integer number (6667784078).

Almost surely, 2^20003352231 is an apocalyptic number.

20003352231 is a deficient number, since it is larger than the sum of its proper divisors (6667784081).

20003352231 is an equidigital number, since it uses as much as digits as its factorization.

20003352231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667784080.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 20003352231 its reverse (13225330002), we get a palindrome (33228682233).

The spelling of 20003352231 in words is "twenty billion, three million, three hundred fifty-two thousand, two hundred thirty-one".