1212401342 has 16 divisors (see below), whose sum is σ = 1926316080. Its totient is φ = 570323328.

The previous prime is 1212401339. The next prime is 1212401353. The reversal of 1212401342 is 2431042121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114509 + ... + 124647.

It is an arithmetic number, because the mean of its divisors is an integer number (120394755).

Almost surely, 2^1212401342 is an apocalyptic number.

1212401342 is a deficient number, since it is larger than the sum of its proper divisors (713914738).

1212401342 is a wasteful number, since it uses less digits than its factorization.

1212401342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1212401342 is about 34819.5540178217. The cubic root of 1212401342 is about 1066.3066953082.

Adding to 1212401342 its reverse (2431042121), we get a palindrome (3643443463).

The spelling of 1212401342 in words is "one billion, two hundred twelve million, four hundred one thousand, three hundred forty-two".