20003451232 has 24 divisors (see below), whose sum is σ = 39406191552. Its totient is φ = 9995529600.

The previous prime is 20003451211. The next prime is 20003451253. The reversal of 20003451232 is 23215430002.

It is an interprime number because it is at equal distance from previous prime (20003451211) and next prime (20003451253).

It is a super-2 number, since 2×20003451232² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140944 + ... + 244687.

It is an arithmetic number, because the mean of its divisors is an integer number (1641924648).

Almost surely, 2^20003451232 is an apocalyptic number.

It is an amenable number.

20003451232 is a deficient number, since it is larger than the sum of its proper divisors (19402740320).

20003451232 is a wasteful number, since it uses less digits than its factorization.

20003451232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387262 (or 387254 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20003451232 its reverse (23215430002), we get a palindrome (43218881234).

The spelling of 20003451232 in words is "twenty billion, three million, four hundred fifty-one thousand, two hundred thirty-two".