30231123231 has 16 divisors (see below), whose sum is σ = 42579597440. Its totient is φ = 19025863200.

The previous prime is 30231123227. The next prime is 30231123257. The reversal of 30231123231 is 13232113203.

It is not a de Polignac number, because 30231123231 - 2² = 30231123227 is a prime.

It is a super-2 number, since 2×30231123231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231123198 and 30231123207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231123031) 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 15 ways as a sum of consecutive naturals, for example, 920920 + ... + 953181.

It is an arithmetic number, because the mean of its divisors is an integer number (2661224840).

Almost surely, 2^30231123231 is an apocalyptic number.

30231123231 is a deficient number, since it is larger than the sum of its proper divisors (12348474209).

30231123231 is a wasteful number, since it uses less digits than its factorization.

30231123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874406.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30231123231 its reverse (13232113203), we get a palindrome (43463236434).

The spelling of 30231123231 in words is "thirty billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty-one".