1111212031100 has 36 divisors (see below), whose sum is σ = 2411381338800. Its totient is φ = 444475368960.

The previous prime is 1111212031091. The next prime is 1111212031123. The reversal of 1111212031100 is 11302121111.

It is a super-2 number, since 2×1111212031100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6406316 + ... + 6577484.

Almost surely, 2^{1111212031100} is an apocalyptic number.

1111212031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111212031100 is an abundant number, since it is smaller than the sum of its proper divisors (1300169307700).

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

1111212031100 is a wasteful number, since it uses less digits than its factorization.

1111212031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236102 (or 236095 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1111212031100 its reverse (11302121111), we get a palindrome (1122514152211).

The spelling of 1111212031100 in words is "one trillion, one hundred eleven billion, two hundred twelve million, thirty-one thousand, one hundred".