1302311221323 has 24 divisors (see below), whose sum is σ = 2035330482240. Its totient is φ = 738497082960.

The previous prime is 1302311221319. The next prime is 1302311221411. The reversal of 1302311221323 is 3231221132031.

It is not a de Polignac number, because 1302311221323 - 2² = 1302311221319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302311221293 and 1302311221302.

It is not an unprimeable number, because it can be changed into a prime (1302311211323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33794713 + ... + 33833226.

It is an arithmetic number, because the mean of its divisors is an integer number (84805436760).

Almost surely, 2^{1302311221323} is an apocalyptic number.

1302311221323 is a deficient number, since it is larger than the sum of its proper divisors (733019260917).

1302311221323 is a wasteful number, since it uses less digits than its factorization.

1302311221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67628087 (or 67628080 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1302311221323 its reverse (3231221132031), we get a palindrome (4533532353354).

The spelling of 1302311221323 in words is "one trillion, three hundred two billion, three hundred eleven million, two hundred twenty-one thousand, three hundred twenty-three".