30236123231 has 16 divisors (see below), whose sum is σ = 31582172160. Its totient is φ = 28911224160.

The previous prime is 30236123213. The next prime is 30236123249. The reversal of 30236123231 is 13232163203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30236123213) and next prime (30236123249).

It is a cyclic number.

It is not a de Polignac number, because 30236123231 - 2⁶ = 30236123167 is a prime.

It is a super-3 number, since 3×30236123231³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30236123231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30236123201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902986 + ... + 1918808.

It is an arithmetic number, because the mean of its divisors is an integer number (1973885760).

Almost surely, 2^30236123231 is an apocalyptic number.

30236123231 is a deficient number, since it is larger than the sum of its proper divisors (1346048929).

30236123231 is a wasteful number, since it uses less digits than its factorization.

30236123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16486.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 30236123231 its reverse (13232163203), we get a palindrome (43468286434).

The spelling of 30236123231 in words is "thirty billion, two hundred thirty-six million, one hundred twenty-three thousand, two hundred thirty-one".