30520073441 has 32 divisors (see below), whose sum is σ = 36070949376. Its totient is φ = 25458048000.

The previous prime is 30520073431. The next prime is 30520073443. The reversal of 30520073441 is 14437002503.

It is a happy number.

It is not a de Polignac number, because 30520073441 - 2²² = 30515879137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30520073443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24792296 + ... + 24793526.

It is an arithmetic number, because the mean of its divisors is an integer number (1127217168).

Almost surely, 2^30520073441 is an apocalyptic number.

It is an amenable number.

30520073441 is a deficient number, since it is larger than the sum of its proper divisors (5550875935).

30520073441 is a wasteful number, since it uses less digits than its factorization.

30520073441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 30520073441 its reverse (14437002503), we get a palindrome (44957075944).

The spelling of 30520073441 in words is "thirty billion, five hundred twenty million, seventy-three thousand, four hundred forty-one".