20003231002 has 4 divisors (see below), whose sum is σ = 30004846506. Its totient is φ = 10001615500.

The previous prime is 20003230991. The next prime is 20003231011. The reversal of 20003231002 is 20013230002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20013230002 = 2 ⋅10006615001.

It can be written as a sum of positive squares in only one way, i.e., 19644545281 + 358685721 = 140159^2 + 18939^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000807749 + ... + 5000807752.

Almost surely, 2^20003231002 is an apocalyptic number.

20003231002 is a deficient number, since it is larger than the sum of its proper divisors (10001615504).

20003231002 is a wasteful number, since it uses less digits than its factorization.

20003231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001615503.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20003231002 its reverse (20013230002), we get a palindrome (40016461004).

The spelling of 20003231002 in words is "twenty billion, three million, two hundred thirty-one thousand, two".