11111133231100 has 72 divisors (see below), whose sum is σ = 28007341839008. Its totient is φ = 3747080044800.

The previous prime is 11111133231091. The next prime is 11111133231101. The reversal of 11111133231100 is 113233111111.

11111133231100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111133231101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130064247 + ... + 130149646.

Almost surely, 2^{11111133231100} is an apocalyptic number.

11111133231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111133231100 is an abundant number, since it is smaller than the sum of its proper divisors (16896208607908).

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

11111133231100 is a wasteful number, since it uses less digits than its factorization.

11111133231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260213975 (or 260213968 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11111133231100 its reverse (113233111111), we get a palindrome (11224366342211).

The spelling of 11111133231100 in words is "eleven trillion, one hundred eleven billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred".