20002011994 has 4 divisors (see below), whose sum is σ = 30003017994. Its totient is φ = 10001005996.

The previous prime is 20002011941. The next prime is 20002012007. The reversal of 20002011994 is 49911020002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19477830969 + 524181025 = 139563^2 + 22895^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000502997 + ... + 5000503000.

Almost surely, 2^20002011994 is an apocalyptic number.

20002011994 is a deficient number, since it is larger than the sum of its proper divisors (10001006000).

20002011994 is a wasteful number, since it uses less digits than its factorization.

20002011994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001005999.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 20002011994 its reverse (49911020002), we get a palindrome (69913031996).

The spelling of 20002011994 in words is "twenty billion, two million, eleven thousand, nine hundred ninety-four".