1101123012 has 24 divisors (see below), whose sum is σ = 2802858912. Its totient is φ = 333673600.

The previous prime is 1101122977. The next prime is 1101123013. The reversal of 1101123012 is 2103211011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1101123013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4170789 + ... + 4171052.

It is an arithmetic number, because the mean of its divisors is an integer number (116785788).

Almost surely, 2^1101123012 is an apocalyptic number.

1101123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101123012 is an abundant number, since it is smaller than the sum of its proper divisors (1701735900).

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

1101123012 is a wasteful number, since it uses less digits than its factorization.

1101123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341859 (or 8341857 counting only the distinct ones).

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

The square root of 1101123012 is about 33183.1736276083. The cubic root of 1101123012 is about 1032.6312877823.

Adding to 1101123012 its reverse (2103211011), we get a palindrome (3204334023).

The spelling of 1101123012 in words is "one billion, one hundred one million, one hundred twenty-three thousand, twelve".