1322115123 has 16 divisors (see below), whose sum is σ = 2057518080. Its totient is φ = 739419456.

The previous prime is 1322115121. The next prime is 1322115127. The reversal of 1322115123 is 3215112231.

It is not a de Polignac number, because 1322115123 - 2¹ = 1322115121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1322115123.

It is not an unprimeable number, because it can be changed into a prime (1322115121) 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, 668778 + ... + 670751.

It is an arithmetic number, because the mean of its divisors is an integer number (128594880).

Almost surely, 2^1322115123 is an apocalyptic number.

1322115123 is a deficient number, since it is larger than the sum of its proper divisors (735402957).

1322115123 is a wasteful number, since it uses less digits than its factorization.

1322115123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339586.

The product of its digits is 360, while the sum is 21.

The square root of 1322115123 is about 36360.9010201893. The cubic root of 1322115123 is about 1097.5469089526.

Adding to 1322115123 its reverse (3215112231), we get a palindrome (4537227354).

The spelling of 1322115123 in words is "one billion, three hundred twenty-two million, one hundred fifteen thousand, one hundred twenty-three".