30231211031 has 8 divisors (see below), whose sum is σ = 34578215424. Its totient is φ = 25891271640.

The previous prime is 30231211019. The next prime is 30231211069. The reversal of 30231211031 is 13011213203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231211031 is a prime.

It is a super-2 number, since 2×30231211031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231261031) 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 7 ways as a sum of consecutive naturals, for example, 1757075 + ... + 1774196.

It is an arithmetic number, because the mean of its divisors is an integer number (4322276928).

Almost surely, 2^30231211031 is an apocalyptic number.

30231211031 is a deficient number, since it is larger than the sum of its proper divisors (4347004393).

30231211031 is a wasteful number, since it uses less digits than its factorization.

30231211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532501.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30231211031 its reverse (13011213203), we get a palindrome (43242424234).

The spelling of 30231211031 in words is "thirty billion, two hundred thirty-one million, two hundred eleven thousand, thirty-one".