30323121331 has 4 divisors (see below), whose sum is σ = 30837072600. Its totient is φ = 29809170064.

The previous prime is 30323121329. The next prime is 30323121371. The reversal of 30323121331 is 13312132303.

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 30323121331 - 2¹ = 30323121329 is a prime.

It is a super-2 number, since 2×30323121331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30323121371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256975546 + ... + 256975663.

It is an arithmetic number, because the mean of its divisors is an integer number (7709268150).

Almost surely, 2^30323121331 is an apocalyptic number.

30323121331 is a deficient number, since it is larger than the sum of its proper divisors (513951269).

30323121331 is an equidigital number, since it uses as much as digits as its factorization.

30323121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513951268.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 30323121331 its reverse (13312132303), we get a palindrome (43635253634).

The spelling of 30323121331 in words is "thirty billion, three hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty-one".