1100203112232 has 384 divisors, whose sum is σ = 3618247127040. Its totient is φ = 306667088640.

The previous prime is 1100203112231. The next prime is 1100203112257. The reversal of 1100203112232 is 2322113020011.

1100203112232 is a `hidden beast` number, since 1 + 100 + 20 + 311 + 2 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1100203112231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 211697058 + ... + 211702254.

It is an arithmetic number, because the mean of its divisors is an integer number (9422518560).

Almost surely, 2^{1100203112232} is an apocalyptic number.

1100203112232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100203112232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809123563520).

1100203112232 is an abundant number, since it is smaller than the sum of its proper divisors (2518044014808).

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

1100203112232 is a wasteful number, since it uses less digits than its factorization.

1100203112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1100203112232 its reverse (2322113020011), we get a palindrome (3422316132243).

The spelling of 1100203112232 in words is "one trillion, one hundred billion, two hundred three million, one hundred twelve thousand, two hundred thirty-two".