1210421342 has 16 divisors (see below), whose sum is σ = 1959158880. Its totient is φ = 557552352.

The previous prime is 1210421341. The next prime is 1210421351. The reversal of 1210421342 is 2431240121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210421341) 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, 32498 + ... + 58965.

It is an arithmetic number, because the mean of its divisors is an integer number (122447430).

Almost surely, 2^1210421342 is an apocalyptic number.

1210421342 is a deficient number, since it is larger than the sum of its proper divisors (748737538).

1210421342 is a wasteful number, since it uses less digits than its factorization.

1210421342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91987.

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

The square root of 1210421342 is about 34791.1101001391. The cubic root of 1210421342 is about 1065.7259091835.

Adding to 1210421342 its reverse (2431240121), we get a palindrome (3641661463).

The spelling of 1210421342 in words is "one billion, two hundred ten million, four hundred twenty-one thousand, three hundred forty-two".