1320423522 has 32 divisors (see below), whose sum is σ = 2883133440. Its totient is φ = 399821520.

The previous prime is 1320423479. The next prime is 1320423527. The reversal of 1320423522 is 2253240231.

It is a junction number, because it is equal to n+sod(n) for n = 1320423492 and 1320423501.

It is not an unprimeable number, because it can be changed into a prime (1320423527) 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, 88023 + ... + 101925.

It is an arithmetic number, because the mean of its divisors is an integer number (90097920).

Almost surely, 2^1320423522 is an apocalyptic number.

1320423522 is an abundant number, since it is smaller than the sum of its proper divisors (1562709918).

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

1320423522 is a wasteful number, since it uses less digits than its factorization.

1320423522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15358.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1320423522 is about 36337.6323114206. The cubic root of 1320423522 is about 1097.0786179535.

Adding to 1320423522 its reverse (2253240231), we get a palindrome (3573663753).

The spelling of 1320423522 in words is "one billion, three hundred twenty million, four hundred twenty-three thousand, five hundred twenty-two".