20010243276 has 18 divisors (see below), whose sum is σ = 50581448372. Its totient is φ = 6670081080.

The previous prime is 20010243247. The next prime is 20010243277. The reversal of 20010243276 is 67234201002.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (20010243277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277920010 + ... + 277920081.

Almost surely, 2^20010243276 is an apocalyptic number.

It is an amenable number.

20010243276 is an abundant number, since it is smaller than the sum of its proper divisors (30571205096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010243276 is a wasteful number, since it uses less digits than its factorization.

20010243276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555840101 (or 555840096 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 20010243276 its reverse (67234201002), we get a palindrome (87244444278).

The spelling of 20010243276 in words is "twenty billion, ten million, two hundred forty-three thousand, two hundred seventy-six".