121012330231 has 16 divisors (see below), whose sum is σ = 130670880928. Its totient is φ = 111404160000.

The previous prime is 121012330223. The next prime is 121012330253. The reversal of 121012330231 is 132033210121.

It is a cyclic number.

It is not a de Polignac number, because 121012330231 - 2³ = 121012330223 is a prime.

It is a super-2 number, since 2×121012330231² (a number of 23 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 = 121012330199 and 121012330208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012330211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8204095 + ... + 8218831.

It is an arithmetic number, because the mean of its divisors is an integer number (8166930058).

Almost surely, 2^121012330231 is an apocalyptic number.

121012330231 is a deficient number, since it is larger than the sum of its proper divisors (9658550697).

121012330231 is a wasteful number, since it uses less digits than its factorization.

121012330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16402.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121012330231 its reverse (132033210121), we get a palindrome (253045540352).

The spelling of 121012330231 in words is "one hundred twenty-one billion, twelve million, three hundred thirty thousand, two hundred thirty-one".