30311233391321 has 2 divisors, whose sum is σ = 30311233391322. Its totient is φ = 30311233391320.

The previous prime is 30311233391303. The next prime is 30311233391429. The reversal of 30311233391321 is 12319333211303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15276653663296 + 15034579728025 = 3908536^2 + 3877445^2 .

It is a cyclic number.

It is not a de Polignac number, because 30311233391321 - 2²² = 30311229197017 is a prime.

It is not a weakly prime, because it can be changed into another prime (30311233393321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155616695660 + 15155616695661.

It is an arithmetic number, because the mean of its divisors is an integer number (15155616695661).

Almost surely, 2^{30311233391321} is an apocalyptic number.

It is an amenable number.

30311233391321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311233391321 is an equidigital number, since it uses as much as digits as its factorization.

30311233391321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 35.

The spelling of 30311233391321 in words is "thirty trillion, three hundred eleven billion, two hundred thirty-three million, three hundred ninety-one thousand, three hundred twenty-one".