121303302031231 has 4 divisors (see below), whose sum is σ = 121382533451464. Its totient is φ = 121224070611000.

The previous prime is 121303302031229. The next prime is 121303302031253. The reversal of 121303302031231 is 132130203303121.

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 121303302031231 - 2¹ = 121303302031229 is a prime.

It is a super-2 number, since 2×121303302031231² (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 = 121303302031196 and 121303302031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303302041231) 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, 39615707820 + ... + 39615710881.

It is an arithmetic number, because the mean of its divisors is an integer number (30345633362866).

Almost surely, 2^{121303302031231} is an apocalyptic number.

121303302031231 is a deficient number, since it is larger than the sum of its proper divisors (79231420233).

121303302031231 is an equidigital number, since it uses as much as digits as its factorization.

121303302031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79231420232.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 121303302031231 its reverse (132130203303121), we get a palindrome (253433505334352).

The spelling of 121303302031231 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred two million, thirty-one thousand, two hundred thirty-one".