1212432343 has 8 divisors (see below), whose sum is σ = 1248537488. Its totient is φ = 1176686784.

The previous prime is 1212432341. The next prime is 1212432407. The reversal of 1212432343 is 3432342121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212432343 - 2¹ = 1212432341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212432341) 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, 83046 + ... + 96547.

It is an arithmetic number, because the mean of its divisors is an integer number (156067186).

Almost surely, 2^1212432343 is an apocalyptic number.

1212432343 is a deficient number, since it is larger than the sum of its proper divisors (36105145).

1212432343 is a wasteful number, since it uses less digits than its factorization.

1212432343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179793.

The product of its digits is 3456, while the sum is 25.

The square root of 1212432343 is about 34819.9991815049. Note that the first 3 decimals coincide. The cubic root of 1212432343 is about 1066.3157836881.

Adding to 1212432343 its reverse (3432342121), we get a palindrome (4644774464).

It can be divided in two parts, 12124323 and 43, that multiplied together give a square (521345889 = 22833²).

The spelling of 1212432343 in words is "one billion, two hundred twelve million, four hundred thirty-two thousand, three hundred forty-three".