30311120221133 has 16 divisors (see below), whose sum is σ = 30751226069760. Its totient is φ = 29874608946816.

The previous prime is 30311120221061. The next prime is 30311120221177. The reversal of 30311120221133 is 33112202111303.

It is a cyclic number.

It is not a de Polignac number, because 30311120221133 - 2¹⁶ = 30311120155597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30311120221099 and 30311120221108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311120221633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18739208 + ... + 20292366.

It is an arithmetic number, because the mean of its divisors is an integer number (1921951629360).

Almost surely, 2^{30311120221133} is an apocalyptic number.

It is an amenable number.

30311120221133 is a deficient number, since it is larger than the sum of its proper divisors (440105848627).

30311120221133 is a wasteful number, since it uses less digits than its factorization.

30311120221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554316.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30311120221133 its reverse (33112202111303), we get a palindrome (63423322332436).

The spelling of 30311120221133 in words is "thirty trillion, three hundred eleven billion, one hundred twenty million, two hundred twenty-one thousand, one hundred thirty-three".