30321431011 has 4 divisors (see below), whose sum is σ = 30369484624. Its totient is φ = 30273377400.

The previous prime is 30321431003. The next prime is 30321431017. The reversal of 30321431011 is 11013412303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11013412303 = 55843 ⋅197221.

It is a cyclic number.

It is not a de Polignac number, because 30321431011 - 2³ = 30321431003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30321431011.

It is not an unprimeable number, because it can be changed into a prime (30321431017) 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, 24025860 + ... + 24027121.

It is an arithmetic number, because the mean of its divisors is an integer number (7592371156).

Almost surely, 2^30321431011 is an apocalyptic number.

30321431011 is a deficient number, since it is larger than the sum of its proper divisors (48053613).

30321431011 is an equidigital number, since it uses as much as digits as its factorization.

30321431011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48053612.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30321431011 its reverse (11013412303), we get a palindrome (41334843314).

The spelling of 30321431011 in words is "thirty billion, three hundred twenty-one million, four hundred thirty-one thousand, eleven".