30013031231 has 2 divisors, whose sum is σ = 30013031232. Its totient is φ = 30013031230.

The previous prime is 30013031203. The next prime is 30013031249. The reversal of 30013031231 is 13213031003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30013031231 - 2²⁶ = 29945922367 is a prime.

It is a super-2 number, since 2×30013031231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30013031281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006515615 + 15006515616.

It is an arithmetic number, because the mean of its divisors is an integer number (15006515616).

Almost surely, 2^30013031231 is an apocalyptic number.

30013031231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30013031231 is an equidigital number, since it uses as much as digits as its factorization.

30013031231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30013031231 its reverse (13213031003), we get a palindrome (43226062234).

The spelling of 30013031231 in words is "thirty billion, thirteen million, thirty-one thousand, two hundred thirty-one".