20011111120312 has 32 divisors (see below), whose sum is σ = 40568035621680. Its totient is φ = 9199101024000.

The previous prime is 20011111120309. The next prime is 20011111120337. The reversal of 20011111120312 is 21302111111002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383269773 + ... + 383321980.

Almost surely, 2^{20011111120312} is an apocalyptic number.

It is an amenable number.

20011111120312 is an abundant number, since it is smaller than the sum of its proper divisors (20556924501368).

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

20011111120312 is a wasteful number, since it uses less digits than its factorization.

20011111120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766592023 (or 766592019 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20011111120312 its reverse (21302111111002), we get a palindrome (41313222231314).

The spelling of 20011111120312 in words is "twenty trillion, eleven billion, one hundred eleven million, one hundred twenty thousand, three hundred twelve".