1320023442 has 16 divisors (see below), whose sum is σ = 2778996960. Its totient is φ = 416849472.

The previous prime is 1320023437. The next prime is 1320023443. The reversal of 1320023442 is 2443200231.

It is not an unprimeable number, because it can be changed into a prime (1320023443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5789463 + ... + 5789690.

It is an arithmetic number, because the mean of its divisors is an integer number (173687310).

Almost surely, 2^1320023442 is an apocalyptic number.

1320023442 is an abundant number, since it is smaller than the sum of its proper divisors (1458973518).

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

1320023442 is a wasteful number, since it uses less digits than its factorization.

1320023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579177.

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

The square root of 1320023442 is about 36332.1268576449. The cubic root of 1320023442 is about 1096.9678041266.

Adding to 1320023442 its reverse (2443200231), we get a palindrome (3763223673).

The spelling of 1320023442 in words is "one billion, three hundred twenty million, twenty-three thousand, four hundred forty-two".