20112002102 has 8 divisors (see below), whose sum is σ = 31479655536. Its totient is φ = 9618783592.

The previous prime is 20112002017. The next prime is 20112002111. The reversal of 20112002102 is 20120021102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218608673 + ... + 218608764.

It is an arithmetic number, because the mean of its divisors is an integer number (3934956942).

Almost surely, 2^20112002102 is an apocalyptic number.

20112002102 is a deficient number, since it is larger than the sum of its proper divisors (11367653434).

20112002102 is a wasteful number, since it uses less digits than its factorization.

20112002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437217462.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20112002102 its reverse (20120021102), we get a palindrome (40232023204).

The spelling of 20112002102 in words is "twenty billion, one hundred twelve million, two thousand, one hundred two".