1213212331032 has 64 divisors (see below), whose sum is σ = 3274568784480. Its totient is φ = 372355771392.

The previous prime is 1213212331003. The next prime is 1213212331069. The reversal of 1213212331032 is 2301332123121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1213212330993 and 1213212331011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4773493 + ... + 5021220.

Almost surely, 2^{1213212331032} is an apocalyptic number.

1213212331032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213212331032 is an abundant number, since it is smaller than the sum of its proper divisors (2061356453448).

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

1213212331032 is a wasteful number, since it uses less digits than its factorization.

1213212331032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9795132 (or 9795128 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1213212331032 its reverse (2301332123121), we get a palindrome (3514544454153).

The spelling of 1213212331032 in words is "one trillion, two hundred thirteen billion, two hundred twelve million, three hundred thirty-one thousand, thirty-two".