30031211323 has 4 divisors (see below), whose sum is σ = 30060116320. Its totient is φ = 30002306328.

The previous prime is 30031211257. The next prime is 30031211351. The reversal of 30031211323 is 32311213003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30031211323 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 30031211323.

It is not an unprimeable number, because it can be changed into a prime (30031211383) 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, 14450940 + ... + 14453017.

It is an arithmetic number, because the mean of its divisors is an integer number (7515029080).

Almost surely, 2^30031211323 is an apocalyptic number.

30031211323 is a deficient number, since it is larger than the sum of its proper divisors (28904997).

30031211323 is a wasteful number, since it uses less digits than its factorization.

30031211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28904996.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30031211323 its reverse (32311213003), we get a palindrome (62342424326).

The spelling of 30031211323 in words is "thirty billion, thirty-one million, two hundred eleven thousand, three hundred twenty-three".