20420423302 has 8 divisors (see below), whose sum is σ = 30636024912. Its totient is φ = 10208415000.

The previous prime is 20420423291. The next prime is 20420423333. The reversal of 20420423302 is 20332402402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884074 + ... + 906877.

It is an arithmetic number, because the mean of its divisors is an integer number (3829503114).

Almost surely, 2^20420423302 is an apocalyptic number.

20420423302 is a deficient number, since it is larger than the sum of its proper divisors (10215601610).

20420423302 is a wasteful number, since it uses less digits than its factorization.

20420423302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796654.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20420423302 its reverse (20332402402), we get a palindrome (40752825704).

The spelling of 20420423302 in words is "twenty billion, four hundred twenty million, four hundred twenty-three thousand, three hundred two".