1323002011 has 4 divisors (see below), whose sum is σ = 1368622800. Its totient is φ = 1277381224.

The previous prime is 1323001991. The next prime is 1323002029. The reversal of 1323002011 is 1102003231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102003231 = 7 ⋅157429033.

It is a cyclic number.

It is not a de Polignac number, because 1323002011 - 2⁹ = 1323001499 is a prime.

It is a super-2 number, since 2×1323002011² = 3500668642220088242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323001982 and 1323002000.

It is not an unprimeable number, because it can be changed into a prime (1323002411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22810351 + ... + 22810408.

It is an arithmetic number, because the mean of its divisors is an integer number (342155700).

Almost surely, 2^1323002011 is an apocalyptic number.

1323002011 is a deficient number, since it is larger than the sum of its proper divisors (45620789).

1323002011 is an equidigital number, since it uses as much as digits as its factorization.

1323002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45620788.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1323002011 is about 36373.0946030167. The cubic root of 1323002011 is about 1097.7922692321.

Adding to 1323002011 its reverse (1102003231), we get a palindrome (2425005242).

The spelling of 1323002011 in words is "one billion, three hundred twenty-three million, two thousand, eleven".