20321134002 has 48 divisors (see below), whose sum is σ = 47428763928. Its totient is φ = 6250970880.

The previous prime is 20321133997. The next prime is 20321134021. The reversal of 20321134002 is 20043112302.

20321134002 is a `hidden beast` number, since 2 + 0 + 321 + 1 + 340 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15075173961 + 5245960041 = 122781^2 + 72429^2 .

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 23 ways as a sum of consecutive naturals, for example, 1071918 + ... + 1090710.

Almost surely, 2^20321134002 is an apocalyptic number.

20321134002 is an abundant number, since it is smaller than the sum of its proper divisors (27107629926).

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

20321134002 is a wasteful number, since it uses less digits than its factorization.

20321134002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23435 (or 23432 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20321134002 its reverse (20043112302), we get a palindrome (40364246304).

The spelling of 20321134002 in words is "twenty billion, three hundred twenty-one million, one hundred thirty-four thousand, two".