1323002155 has 16 divisors (see below), whose sum is σ = 1650174624. Its totient is φ = 1017377280.

The previous prime is 1323002117. The next prime is 1323002173. The reversal of 1323002155 is 5512003231.

It is not a de Polignac number, because 1323002155 - 2¹⁵ = 1322969387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27726 + ... + 58435.

It is an arithmetic number, because the mean of its divisors is an integer number (103135914).

Almost surely, 2^1323002155 is an apocalyptic number.

1323002155 is a deficient number, since it is larger than the sum of its proper divisors (327172469).

1323002155 is an equidigital number, since it uses as much as digits as its factorization.

1323002155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86286.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1323002155 is about 36373.0965825017. The cubic root of 1323002155 is about 1097.7923090613.

Adding to 1323002155 its reverse (5512003231), we get a palindrome (6835005386).

The spelling of 1323002155 in words is "one billion, three hundred twenty-three million, two thousand, one hundred fifty-five".