1213224342 has 32 divisors (see below), whose sum is σ = 2686552704. Its totient is φ = 362155200.

The previous prime is 1213224319. The next prime is 1213224349. The reversal of 1213224342 is 2434223121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213224349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132759 + ... + 141602.

It is an arithmetic number, because the mean of its divisors is an integer number (83954772).

Almost surely, 2^1213224342 is an apocalyptic number.

1213224342 is an abundant number, since it is smaller than the sum of its proper divisors (1473328362).

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

1213224342 is a wasteful number, since it uses less digits than its factorization.

1213224342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274444.

The product of its digits is 2304, while the sum is 24.

The square root of 1213224342 is about 34831.3700850254. The cubic root of 1213224342 is about 1066.5479168367.

Adding to 1213224342 its reverse (2434223121), we get a palindrome (3647447463).

The spelling of 1213224342 in words is "one billion, two hundred thirteen million, two hundred twenty-four thousand, three hundred forty-two".