20002120130 has 8 divisors (see below), whose sum is σ = 36003816252. Its totient is φ = 8000848048.

The previous prime is 20002120121. The next prime is 20002120139. The reversal of 20002120130 is 3102120002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20002120121) and next prime (20002120139).

It can be written as a sum of positive squares in 2 ways, for example, as 19978974409 + 23145721 = 141347^2 + 4811^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20002120139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000105997 + ... + 1000106016.

Almost surely, 2^20002120130 is an apocalyptic number.

20002120130 is a deficient number, since it is larger than the sum of its proper divisors (16001696122).

20002120130 is a wasteful number, since it uses less digits than its factorization.

20002120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000212020.

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

Adding to 20002120130 its reverse (3102120002), we get a palindrome (23104240132).

The spelling of 20002120130 in words is "twenty billion, two million, one hundred twenty thousand, one hundred thirty".