20001213130 has 8 divisors (see below), whose sum is σ = 36002183652. Its totient is φ = 8000485248.

The previous prime is 20001213121. The next prime is 20001213143. The reversal of 20001213130 is 3131210002.

It can be written as a sum of positive squares in 2 ways, for example, as 17801696929 + 2199516201 = 133423^2 + 46899^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20001213130.

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, 1000060647 + ... + 1000060666.

Almost surely, 2^20001213130 is an apocalyptic number.

20001213130 is a deficient number, since it is larger than the sum of its proper divisors (16000970522).

20001213130 is a wasteful number, since it uses less digits than its factorization.

20001213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000121320.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20001213130 its reverse (3131210002), we get a palindrome (23132423132).

The spelling of 20001213130 in words is "twenty billion, one million, two hundred thirteen thousand, one hundred thirty".