30001231231 has 2 divisors, whose sum is σ = 30001231232. Its totient is φ = 30001231230.

The previous prime is 30001231229. The next prime is 30001231261. The reversal of 30001231231 is 13213210003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30001231231 - 2¹ = 30001231229 is a prime.

It is a super-2 number, since 2×30001231231² (a number of 22 digits) contains 22 as substring.

Together with 30001231229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30001231261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000615615 + 15000615616.

It is an arithmetic number, because the mean of its divisors is an integer number (15000615616).

Almost surely, 2^30001231231 is an apocalyptic number.

30001231231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30001231231 is an equidigital number, since it uses as much as digits as its factorization.

30001231231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30001231231 its reverse (13213210003), we get a palindrome (43214441234).

The spelling of 30001231231 in words is "thirty billion, one million, two hundred thirty-one thousand, two hundred thirty-one".