20111110111002 has 8 divisors (see below), whose sum is σ = 40222220222016. Its totient is φ = 6703703370332.

The previous prime is 20111110110997. The next prime is 20111110111031. The reversal of 20111110111002 is 20011101111102.

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

20111110111002 is an admirable number.

It is a super-2 number, since 2×20111110111002² (a number of 27 digits) contains 22 as substring.

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, 1675925842578 + ... + 1675925842589.

It is an arithmetic number, because the mean of its divisors is an integer number (5027777527752).

Almost surely, 2^{20111110111002} is an apocalyptic number.

20111110111002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20111110111002 is a wasteful number, since it uses less digits than its factorization.

20111110111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351851685172.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 20111110111002 its reverse (20011101111102), we get a palindrome (40122211222104).

The spelling of 20111110111002 in words is "twenty trillion, one hundred eleven billion, one hundred ten million, one hundred eleven thousand, two".