121112013032231 has 4 divisors (see below), whose sum is σ = 130428321727032. Its totient is φ = 111795704337432.

The previous prime is 121112013032207. The next prime is 121112013032303. The reversal of 121112013032231 is 132230310211121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121112013032231 - 2⁶ = 121112013032167 is a prime.

It is a super-2 number, since 2×121112013032231² (a number of 29 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 = 121112013032197 and 121112013032206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112013032431) 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, 4658154347381 + ... + 4658154347406.

It is an arithmetic number, because the mean of its divisors is an integer number (32607080431758).

Almost surely, 2^{121112013032231} is an apocalyptic number.

121112013032231 is a deficient number, since it is larger than the sum of its proper divisors (9316308694801).

121112013032231 is an equidigital number, since it uses as much as digits as its factorization.

121112013032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316308694800.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121112013032231 its reverse (132230310211121), we get a palindrome (253342323243352).

The spelling of 121112013032231 in words is "one hundred twenty-one trillion, one hundred twelve billion, thirteen million, thirty-two thousand, two hundred thirty-one".