1242320322 has 64 divisors (see below), whose sum is σ = 2673095040. Its totient is φ = 383533056.

The previous prime is 1242320273. The next prime is 1242320329. The reversal of 1242320322 is 2230232421.

It is not an unprimeable number, because it can be changed into a prime (1242320329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3037254 + ... + 3037662.

It is an arithmetic number, because the mean of its divisors is an integer number (41767110).

Almost surely, 2^1242320322 is an apocalyptic number.

1242320322 is an abundant number, since it is smaller than the sum of its proper divisors (1430774718).

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

1242320322 is a wasteful number, since it uses less digits than its factorization.

1242320322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1242320322 is about 35246.5646836681. The cubic root of 1242320322 is about 1075.0067631087.

Adding to 1242320322 its reverse (2230232421), we get a palindrome (3472552743).

The spelling of 1242320322 in words is "one billion, two hundred forty-two million, three hundred twenty thousand, three hundred twenty-two".