1101243431212 has 72 divisors (see below), whose sum is σ = 2006369448720. Its totient is φ = 528852758400.

The previous prime is 1101243431177. The next prime is 1101243431219. The reversal of 1101243431212 is 2121343421011.

It is not an unprimeable number, because it can be changed into a prime (1101243431219) 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 23 ways as a sum of consecutive naturals, for example, 430676638 + ... + 430679194.

Almost surely, 2^{1101243431212} is an apocalyptic number.

It is an amenable number.

1101243431212 is a deficient number, since it is larger than the sum of its proper divisors (905126017508).

1101243431212 is a wasteful number, since it uses less digits than its factorization.

1101243431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1101243431212 its reverse (2121343421011), we get a palindrome (3222586852223).

The spelling of 1101243431212 in words is "one trillion, one hundred one billion, two hundred forty-three million, four hundred thirty-one thousand, two hundred twelve".