1212341432 has 16 divisors (see below), whose sum is σ = 2284566000. Its totient is φ = 603123840.

The previous prime is 1212341399. The next prime is 1212341437. The reversal of 1212341432 is 2341432121.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1212341398 and 1212341407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212341437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379169 + ... + 382352.

It is an arithmetic number, because the mean of its divisors is an integer number (142785375).

Almost surely, 2^1212341432 is an apocalyptic number.

It is an amenable number.

1212341432 is a deficient number, since it is larger than the sum of its proper divisors (1072224568).

1212341432 is a wasteful number, since it uses less digits than its factorization.

1212341432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761726 (or 761722 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1212341432 is about 34818.6937147274. The cubic root of 1212341432 is about 1066.2891314086.

Adding to 1212341432 its reverse (2341432121), we get a palindrome (3553773553).

The spelling of 1212341432 in words is "one billion, two hundred twelve million, three hundred forty-one thousand, four hundred thirty-two".