30442311133 has 4 divisors (see below), whose sum is σ = 32784027388. Its totient is φ = 28100594880.

The previous prime is 30442311131. The next prime is 30442311161. The reversal of 30442311133 is 33111324403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33111324403 = 29 ⋅1141769807.

It can be written as a sum of positive squares in 2 ways, for example, as 9073134009 + 21369177124 = 95253^2 + 146182^2 .

It is a cyclic number.

It is not a de Polignac number, because 30442311133 - 2¹ = 30442311131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30442311098 and 30442311107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442311131) 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, 1170858108 + ... + 1170858133.

It is an arithmetic number, because the mean of its divisors is an integer number (8196006847).

Almost surely, 2^30442311133 is an apocalyptic number.

It is an amenable number.

30442311133 is a deficient number, since it is larger than the sum of its proper divisors (2341716255).

30442311133 is a wasteful number, since it uses less digits than its factorization.

30442311133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341716254.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 30442311133 its reverse (33111324403), we get a palindrome (63553635536).

The spelling of 30442311133 in words is "thirty billion, four hundred forty-two million, three hundred eleven thousand, one hundred thirty-three".