Adding to 31900111110011 its reverse (11001111100913), we get a palindrome (42901222210924).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31900111110011 is a prime.
It is a Duffinian number.
Almost surely, 231900111110011 is an apocalyptic number.
31900111110011 is a wasteful number, since it uses less digits than its factorization.
31900111110011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24519687012.
The spelling of 31900111110011 in words is "thirty-one trillion, nine hundred billion, one hundred eleven million, one hundred ten thousand, eleven".