20102111312002 has 8 divisors (see below), whose sum is σ = 31192931346300. Its totient is φ = 9704467529904.

The previous prime is 20102111311957. The next prime is 20102111312011. The reversal of 20102111312002 is 20021311120102.

It can be written as a sum of positive squares in 2 ways, for example, as 19606200996321 + 495910315681 = 4427889^2 + 704209^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173294062977 + ... + 173294063092.

Almost surely, 2^{20102111312002} is an apocalyptic number.

20102111312002 is a deficient number, since it is larger than the sum of its proper divisors (11090820034298).

20102111312002 is a wasteful number, since it uses less digits than its factorization.

20102111312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346588126100.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20102111312002 its reverse (20021311120102), we get a palindrome (40123422432104).

The spelling of 20102111312002 in words is "twenty trillion, one hundred two billion, one hundred eleven million, three hundred twelve thousand, two".