121310223302231 has 4 divisors (see below), whose sum is σ = 122673259519200. Its totient is φ = 119947187085264.

The previous prime is 121310223302221. The next prime is 121310223302291. The reversal of 121310223302231 is 132203322013121.

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 121310223302231 - 2³⁰ = 121309149560407 is a prime.

It is a super-2 number, since 2×121310223302231² (a number of 29 digits) contains 22 as substring.

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 121310223302231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121310223302221) 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, 681518108351 + ... + 681518108528.

It is an arithmetic number, because the mean of its divisors is an integer number (30668314879800).

Almost surely, 2^{121310223302231} is an apocalyptic number.

121310223302231 is a deficient number, since it is larger than the sum of its proper divisors (1363036216969).

121310223302231 is an equidigital number, since it uses as much as digits as its factorization.

121310223302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363036216968.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 121310223302231 its reverse (132203322013121), we get a palindrome (253513545315352).

The spelling of 121310223302231 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred twenty-three million, three hundred two thousand, two hundred thirty-one".