30133322431 has 4 divisors (see below), whose sum is σ = 30133863864. Its totient is φ = 30132781000.

The previous prime is 30133322423. The next prime is 30133322489. The reversal of 30133322431 is 13422333103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30133322431 - 2³ = 30133322423 is a prime.

It is a super-2 number, since 2×30133322431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30133322396 and 30133322405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133322411) 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, 176245 + ... + 302206.

It is an arithmetic number, because the mean of its divisors is an integer number (7533465966).

Almost surely, 2^30133322431 is an apocalyptic number.

30133322431 is a deficient number, since it is larger than the sum of its proper divisors (541433).

30133322431 is an equidigital number, since it uses as much as digits as its factorization.

30133322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541432.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 30133322431 its reverse (13422333103), we get a palindrome (43555655534).

The spelling of 30133322431 in words is "thirty billion, one hundred thirty-three million, three hundred twenty-two thousand, four hundred thirty-one".