1212432042 has 32 divisors (see below), whose sum is σ = 2487215808. Its totient is φ = 393797376.

The previous prime is 1212432037. The next prime is 1212432059. The reversal of 1212432042 is 2402342121.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 106288 + ... + 117140.

It is an arithmetic number, because the mean of its divisors is an integer number (77725494).

Almost surely, 2^1212432042 is an apocalyptic number.

1212432042 is an abundant number, since it is smaller than the sum of its proper divisors (1274783766).

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

1212432042 is a wasteful number, since it uses less digits than its factorization.

1212432042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1212432042 is about 34819.9948592759. The cubic root of 1212432042 is about 1066.3156954465.

Adding to 1212432042 its reverse (2402342121), we get a palindrome (3614774163).

The spelling of 1212432042 in words is "one billion, two hundred twelve million, four hundred thirty-two thousand, forty-two".