20102102111002 has 8 divisors (see below), whose sum is σ = 30153179952756. Its totient is φ = 10051042126752.

The previous prime is 20102102110973. The next prime is 20102102111033. The reversal of 20102102111002 is 20011120120102.

It can be written as a sum of positive squares in 2 ways, for example, as 19889646567961 + 212455543041 = 4459781^2 + 460929^2 .

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, 1161393 + ... + 6446164.

Almost surely, 2^{20102102111002} is an apocalyptic number.

20102102111002 is a deficient number, since it is larger than the sum of its proper divisors (10051077841754).

20102102111002 is a wasteful number, since it uses less digits than its factorization.

20102102111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928752.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20102102111002 its reverse (20011120120102), we get a palindrome (40113222231104).

The spelling of 20102102111002 in words is "twenty trillion, one hundred two billion, one hundred two million, one hundred eleven thousand, two".