30443140091 has 16 divisors (see below), whose sum is σ = 37996213248. Its totient is φ = 23747623200.

The previous prime is 30443140081. The next prime is 30443140097. The reversal of 30443140091 is 19004134403.

It is a de Polignac number, because none of the positive numbers 2^k-30443140091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30443140097) 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, 2349455 + ... + 2362376.

It is an arithmetic number, because the mean of its divisors is an integer number (2374763328).

Almost surely, 2^30443140091 is an apocalyptic number.

30443140091 is a deficient number, since it is larger than the sum of its proper divisors (7553073157).

30443140091 is a wasteful number, since it uses less digits than its factorization.

30443140091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711922.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 30443140091 its reverse (19004134403), we get a palindrome (49447274494).

The spelling of 30443140091 in words is "thirty billion, four hundred forty-three million, one hundred forty thousand, ninety-one".