1225311342 has 8 divisors (see below), whose sum is σ = 2450622696. Its totient is φ = 408437112.

The previous prime is 1225311337. The next prime is 1225311379. The reversal of 1225311342 is 2431135221.

It is a sphenic number, since it is the product of 3 distinct primes.

1225311342 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102109273 + ... + 102109284.

It is an arithmetic number, because the mean of its divisors is an integer number (306327837).

Almost surely, 2^1225311342 is an apocalyptic number.

1225311342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1225311342 is a wasteful number, since it uses less digits than its factorization.

1225311342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204218562.

The product of its digits is 1440, while the sum is 24.

The square root of 1225311342 is about 35004.4474602871. The cubic root of 1225311342 is about 1070.0781210613.

Adding to 1225311342 its reverse (2431135221), we get a palindrome (3656446563).

The spelling of 1225311342 in words is "one billion, two hundred twenty-five million, three hundred eleven thousand, three hundred forty-two".