1211242103342 has 4 divisors (see below), whose sum is σ = 1816863155016. Its totient is φ = 605621051670.

The previous prime is 1211242103327. The next prime is 1211242103369. The reversal of 1211242103342 is 2433012421121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302810525834 + ... + 302810525837.

It is an arithmetic number, because the mean of its divisors is an integer number (454215788754).

Almost surely, 2^{1211242103342} is an apocalyptic number.

1211242103342 is a deficient number, since it is larger than the sum of its proper divisors (605621051674).

1211242103342 is an equidigital number, since it uses as much as digits as its factorization.

1211242103342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605621051673.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1211242103342 its reverse (2433012421121), we get a palindrome (3644254524463).

The spelling of 1211242103342 in words is "one trillion, two hundred eleven billion, two hundred forty-two million, one hundred three thousand, three hundred forty-two".