1243315011132 has 48 divisors (see below), whose sum is σ = 3223485995520. Its totient is φ = 414428474736.

The previous prime is 1243315011109. The next prime is 1243315011139. The reversal of 1243315011132 is 2311105133421.

1243315011132 is a `hidden beast` number, since 1 + 2 + 43 + 3 + 1 + 501 + 113 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1243315011096 and 1243315011105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243315011139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5486253 + ... + 5708379.

It is an arithmetic number, because the mean of its divisors is an integer number (67155958240).

Almost surely, 2^{1243315011132} is an apocalyptic number.

1243315011132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243315011132 is an abundant number, since it is smaller than the sum of its proper divisors (1980170984388).

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

1243315011132 is a wasteful number, since it uses less digits than its factorization.

1243315011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273967 (or 273959 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 1243315011132 in words is "one trillion, two hundred forty-three billion, three hundred fifteen million, eleven thousand, one hundred thirty-two".