1213442153432 has 32 divisors (see below), whose sum is σ = 2348989009920. Its totient is φ = 587051605920.

The previous prime is 1213442153419. The next prime is 1213442153437. The reversal of 1213442153432 is 2343512443121.

It is a junction number, because it is equal to n+sod(n) for n = 1213442153392 and 1213442153401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213442153437) 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, 1095083 + ... + 1904229.

It is an arithmetic number, because the mean of its divisors is an integer number (73405906560).

Almost surely, 2^{1213442153432} is an apocalyptic number.

It is an amenable number.

1213442153432 is a deficient number, since it is larger than the sum of its proper divisors (1135546856488).

1213442153432 is a wasteful number, since it uses less digits than its factorization.

1213442153432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815231 (or 815227 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

Adding to 1213442153432 its reverse (2343512443121), we get a palindrome (3556954596553).

The spelling of 1213442153432 in words is "one trillion, two hundred thirteen billion, four hundred forty-two million, one hundred fifty-three thousand, four hundred thirty-two".