30311323023133 has 4 divisors (see below), whose sum is σ = 30312293420380. Its totient is φ = 30310352625888.

The previous prime is 30311323023101. The next prime is 30311323023187. The reversal of 30311323023133 is 33132032311303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29210760471204 + 1100562551929 = 5404698^2 + 1049077^2 .

It is a cyclic number.

It is not a de Polignac number, because 30311323023133 - 2⁵ = 30311323023101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311323083133) 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, 485151768 + ... + 485214241.

It is an arithmetic number, because the mean of its divisors is an integer number (7578073355095).

Almost surely, 2^{30311323023133} is an apocalyptic number.

It is an amenable number.

30311323023133 is a deficient number, since it is larger than the sum of its proper divisors (970397247).

30311323023133 is an equidigital number, since it uses as much as digits as its factorization.

30311323023133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970397246.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 30311323023133 its reverse (33132032311303), we get a palindrome (63443355334436).

The spelling of 30311323023133 in words is "thirty trillion, three hundred eleven billion, three hundred twenty-three million, twenty-three thousand, one hundred thirty-three".