1213444133432 has 32 divisors (see below), whose sum is σ = 2392823808000. Its totient is φ = 575773206624.

The previous prime is 1213444133431. The next prime is 1213444133477. The reversal of 1213444133432 is 2343314443121.

It is a super-3 number, since 3×1213444133432³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213444133392 and 1213444133401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213444133431) 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, 25940432 + ... + 25987167.

It is an arithmetic number, because the mean of its divisors is an integer number (74775744000).

Almost surely, 2^{1213444133432} is an apocalyptic number.

It is an amenable number.

1213444133432 is a deficient number, since it is larger than the sum of its proper divisors (1179379674568).

1213444133432 is a wasteful number, since it uses less digits than its factorization.

1213444133432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51927755 (or 51927751 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

Adding to 1213444133432 its reverse (2343314443121), we get a palindrome (3556758576553).

The spelling of 1213444133432 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, one hundred thirty-three thousand, four hundred thirty-two".