111211310203320 has 64 divisors (see below), whose sum is σ = 333641394421920. Its totient is φ = 29655685937664.

The previous prime is 111211310203297. The next prime is 111211310203337. The reversal of 111211310203320 is 23302013112111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4968367 + ... + 15719646.

Almost surely, 2^{111211310203320} is an apocalyptic number.

111211310203320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111211310203320 is an abundant number, since it is smaller than the sum of its proper divisors (222430084218600).

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

111211310203320 is a wasteful number, since it uses less digits than its factorization.

111211310203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20732824 (or 20732820 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 111211310203320 its reverse (23302013112111), we get a palindrome (134513323315431).

The spelling of 111211310203320 in words is "one hundred eleven trillion, two hundred eleven billion, three hundred ten million, two hundred three thousand, three hundred twenty".