20110112002 has 16 divisors (see below), whose sum is σ = 31281679800. Its totient is φ = 9684581760.

The previous prime is 20110111999. The next prime is 20110112003. The reversal of 20110112002 is 20021101102.

It can be written as a sum of positive squares in 4 ways, for example, as 20099016441 + 11095561 = 141771^2 + 3331^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20110112002.

It is not an unprimeable number, because it can be changed into a prime (20110112003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400149 + ... + 447592.

Almost surely, 2^20110112002 is an apocalyptic number.

20110112002 is a deficient number, since it is larger than the sum of its proper divisors (11171567798).

20110112002 is a wasteful number, since it uses less digits than its factorization.

20110112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848181.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20110112002 its reverse (20021101102), we get a palindrome (40131213104).

The spelling of 20110112002 in words is "twenty billion, one hundred ten million, one hundred twelve thousand, two".