20123001002 has 32 divisors (see below), whose sum is σ = 32768064000. Its totient is φ = 9212943168.

The previous prime is 20123000999. The next prime is 20123001007. The reversal of 20123001002 is 20010032102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20123001007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3324743 + ... + 3330789.

It is an arithmetic number, because the mean of its divisors is an integer number (1024002000).

Almost surely, 2^20123001002 is an apocalyptic number.

20123001002 is a deficient number, since it is larger than the sum of its proper divisors (12645062998).

20123001002 is a wasteful number, since it uses less digits than its factorization.

20123001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20123001002 its reverse (20010032102), we get a palindrome (40133033104).

The spelling of 20123001002 in words is "twenty billion, one hundred twenty-three million, one thousand, two".