20321032002 has 16 divisors (see below), whose sum is σ = 40962081792. Its totient is φ = 6720341040.

The previous prime is 20321031961. The next prime is 20321032031. The reversal of 20321032002 is 20023012302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13333249 + ... + 13334772.

It is an arithmetic number, because the mean of its divisors is an integer number (2560130112).

Almost surely, 2^20321032002 is an apocalyptic number.

20321032002 is an abundant number, since it is smaller than the sum of its proper divisors (20641049790).

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

20321032002 is a wasteful number, since it uses less digits than its factorization.

20321032002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668153.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20321032002 its reverse (20023012302), we get a palindrome (40344044304).

The spelling of 20321032002 in words is "twenty billion, three hundred twenty-one million, thirty-two thousand, two".