1101231100 has 36 divisors (see below), whose sum is σ = 2530244304. Its totient is φ = 414580480.

The previous prime is 1101231067. The next prime is 1101231101. The reversal of 1101231100 is 11321011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101231101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322192 + ... + 325591.

It is an arithmetic number, because the mean of its divisors is an integer number (70284564).

Almost surely, 2^1101231100 is an apocalyptic number.

1101231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101231100 is an abundant number, since it is smaller than the sum of its proper divisors (1429013204).

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

1101231100 is a wasteful number, since it uses less digits than its factorization.

1101231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647814 (or 647807 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1101231100 is about 33184.8022444010. The cubic root of 1101231100 is about 1032.6650749243.

Adding to 1101231100 its reverse (11321011), we get a palindrome (1112552111).

The spelling of 1101231100 in words is "one billion, one hundred one million, two hundred thirty-one thousand, one hundred".