1243140133532 has 24 divisors (see below), whose sum is σ = 2373368603760. Its totient is φ = 565039631360.

The previous prime is 1243140133531. The next prime is 1243140133591. The reversal of 1243140133532 is 2353310413421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243140133531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464444 + ... + 1643772.

It is an arithmetic number, because the mean of its divisors is an integer number (98890358490).

Almost surely, 2^{1243140133532} is an apocalyptic number.

It is an amenable number.

1243140133532 is a deficient number, since it is larger than the sum of its proper divisors (1130228470228).

1243140133532 is a wasteful number, since it uses less digits than its factorization.

1243140133532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203301 (or 1203299 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 1243140133532 its reverse (2353310413421), we get a palindrome (3596450546953).

The spelling of 1243140133532 in words is "one trillion, two hundred forty-three billion, one hundred forty million, one hundred thirty-three thousand, five hundred thirty-two".