20302432403 has 4 divisors (see below), whose sum is σ = 22148108088. Its totient is φ = 18456756720.

The previous prime is 20302432361. The next prime is 20302432417. The reversal of 20302432403 is 30423420302.

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

It is a cyclic number.

It is not a de Polignac number, because 20302432403 - 2²⁰ = 20301383827 is a prime.

It is a super-2 number, since 2×20302432403² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302452403) 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, 922837826 + ... + 922837847.

It is an arithmetic number, because the mean of its divisors is an integer number (5537027022).

Almost surely, 2^20302432403 is an apocalyptic number.

20302432403 is a deficient number, since it is larger than the sum of its proper divisors (1845675685).

20302432403 is a wasteful number, since it uses less digits than its factorization.

20302432403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845675684.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20302432403 its reverse (30423420302), we get a palindrome (50725852705).

The spelling of 20302432403 in words is "twenty billion, three hundred two million, four hundred thirty-two thousand, four hundred three".