20000120002 has 8 divisors (see below), whose sum is σ = 30007712700. Its totient is φ = 9997549104.

The previous prime is 20000119987. The next prime is 20000120017. The reversal of 20000120002 is 20002100002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20000119987) and next prime (20000120017).

It can be written as a sum of positive squares in 2 ways, for example, as 18222570081 + 1777549921 = 134991^2 + 42161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245477 + ... + 1261432.

Almost surely, 2^20000120002 is an apocalyptic number.

20000120002 is a deficient number, since it is larger than the sum of its proper divisors (10007592698).

20000120002 is a wasteful number, since it uses less digits than its factorization.

20000120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510900.

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20000120002 its reverse (20002100002), we get a palindrome (40002220004).

The spelling of 20000120002 in words is "twenty billion, one hundred twenty thousand, two".