1322013623 has 12 divisors (see below), whose sum is σ = 1515861648. Its totient is φ = 1129423680.

The previous prime is 1322013611. The next prime is 1322013659. The reversal of 1322013623 is 3263102231.

It is not a de Polignac number, because 1322013623 - 2¹² = 1322009527 is a prime.

It is a super-2 number, since 2×1322013623² = 3495440038795172258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322013023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1500143 + ... + 1501023.

It is an arithmetic number, because the mean of its divisors is an integer number (126321804).

Almost surely, 2^1322013623 is an apocalyptic number.

1322013623 is a deficient number, since it is larger than the sum of its proper divisors (193848025).

1322013623 is an frugal number, since it uses more digits than its factorization.

1322013623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1322013623 is about 36359.5052634108. The cubic root of 1322013623 is about 1097.5188216703.

Adding to 1322013623 its reverse (3263102231), we get a palindrome (4585115854).

The spelling of 1322013623 in words is "one billion, three hundred twenty-two million, thirteen thousand, six hundred twenty-three".