30120040441 has 4 divisors (see below), whose sum is σ = 30130229412. Its totient is φ = 30109851472.

The previous prime is 30120040427. The next prime is 30120040493. The reversal of 30120040441 is 14404002103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14404002103 = 23 ⋅626260961.

It can be written as a sum of positive squares in 2 ways, for example, as 7762314816 + 22357725625 = 88104^2 + 149525^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120040441 - 2²³ = 30111651833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120040141) 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, 5090050 + ... + 5095963.

It is an arithmetic number, because the mean of its divisors is an integer number (7532557353).

Almost surely, 2^30120040441 is an apocalyptic number.

It is an amenable number.

30120040441 is a deficient number, since it is larger than the sum of its proper divisors (10188971).

30120040441 is a wasteful number, since it uses less digits than its factorization.

30120040441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10188970.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 30120040441 its reverse (14404002103), we get a palindrome (44524042544).

The spelling of 30120040441 in words is "thirty billion, one hundred twenty million, forty thousand, four hundred forty-one".