30332123231 has 4 divisors (see below), whose sum is σ = 32116365792. Its totient is φ = 28547880672.

The previous prime is 30332123137. The next prime is 30332123249. The reversal of 30332123231 is 13232123303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13232123303 = 7 ⋅1890303329.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30332123231 is a prime.

It is a super-2 number, since 2×30332123231² (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 = 30332123197 and 30332123206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30332128231) 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, 892121255 + ... + 892121288.

It is an arithmetic number, because the mean of its divisors is an integer number (8029091448).

Almost surely, 2^30332123231 is an apocalyptic number.

30332123231 is a deficient number, since it is larger than the sum of its proper divisors (1784242561).

30332123231 is a wasteful number, since it uses less digits than its factorization.

30332123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784242560.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30332123231 its reverse (13232123303), we get a palindrome (43564246534).

The spelling of 30332123231 in words is "thirty billion, three hundred thirty-two million, one hundred twenty-three thousand, two hundred thirty-one".