1213773312432 has 80 divisors (see below), whose sum is σ = 3143695933440. Its totient is φ = 403545206016.

The previous prime is 1213773312391. The next prime is 1213773312439. The reversal of 1213773312432 is 2342133773121.

It is not an unprimeable number, because it can be changed into a prime (1213773312439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34546138 + ... + 34581254.

It is an arithmetic number, because the mean of its divisors is an integer number (39296199168).

Almost surely, 2^{1213773312432} is an apocalyptic number.

1213773312432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213773312432 is an abundant number, since it is smaller than the sum of its proper divisors (1929922621008).

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

1213773312432 is a wasteful number, since it uses less digits than its factorization.

1213773312432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36970 (or 36964 counting only the distinct ones).

The product of its digits is 127008, while the sum is 39.

The spelling of 1213773312432 in words is "one trillion, two hundred thirteen billion, seven hundred seventy-three million, three hundred twelve thousand, four hundred thirty-two".