20423203002 has 32 divisors (see below), whose sum is σ = 45711422400. Its totient is φ = 6758755344.

The previous prime is 20423202979. The next prime is 20423203013. The reversal of 20423203002 is 20030232402.

20423203002 is a `hidden beast` number, since 2 + 0 + 42 + 320 + 300 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352953 + ... + 1367964.

It is an arithmetic number, because the mean of its divisors is an integer number (1428481950).

Almost surely, 2^20423203002 is an apocalyptic number.

20423203002 is an abundant number, since it is smaller than the sum of its proper divisors (25288219398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423203002 is a wasteful number, since it uses less digits than its factorization.

20423203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721067 (or 2721061 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20423203002 its reverse (20030232402), we get a palindrome (40453435404).

The spelling of 20423203002 in words is "twenty billion, four hundred twenty-three million, two hundred three thousand, two".