1211323342 has 4 divisors (see below), whose sum is σ = 1816985016. Its totient is φ = 605661670.

The previous prime is 1211323327. The next prime is 1211323343. The reversal of 1211323342 is 2433231121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211323343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302830834 + ... + 302830837.

It is an arithmetic number, because the mean of its divisors is an integer number (454246254).

Almost surely, 2^1211323342 is an apocalyptic number.

1211323342 is a deficient number, since it is larger than the sum of its proper divisors (605661674).

1211323342 is an equidigital number, since it uses as much as digits as its factorization.

1211323342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605661673.

The product of its digits is 864, while the sum is 22.

The square root of 1211323342 is about 34804.0707676559. The cubic root of 1211323342 is about 1065.9905680132.

Adding to 1211323342 its reverse (2433231121), we get a palindrome (3644554463).

The spelling of 1211323342 in words is "one billion, two hundred eleven million, three hundred twenty-three thousand, three hundred forty-two".