20000023012 has 6 divisors (see below), whose sum is σ = 35000040278. Its totient is φ = 10000011504.

The previous prime is 20000023009. The next prime is 20000023051. The reversal of 20000023012 is 21032000002.

It can be written as a sum of positive squares in only one way, i.e., 19958343076 + 41679936 = 141274^2 + 6456^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20000023012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500002873 + ... + 2500002880.

Almost surely, 2^20000023012 is an apocalyptic number.

It is an amenable number.

20000023012 is a deficient number, since it is larger than the sum of its proper divisors (15000017266).

20000023012 is a wasteful number, since it uses less digits than its factorization.

20000023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000005757 (or 5000005755 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20000023012 its reverse (21032000002), we get a palindrome (41032023014).

The spelling of 20000023012 in words is "twenty billion, twenty-three thousand, twelve".