121301201312331 has 4 divisors (see below), whose sum is σ = 161734935083112. Its totient is φ = 80867467541552.

The previous prime is 121301201312287. The next prime is 121301201312353. The reversal of 121301201312331 is 133213102103121.

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 121301201312331 - 2¹¹ = 121301201310283 is a prime.

It is a super-2 number, since 2×121301201312331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121301201312231) 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 3 ways as a sum of consecutive naturals, for example, 20216866885386 + ... + 20216866885391.

It is an arithmetic number, because the mean of its divisors is an integer number (40433733770778).

Almost surely, 2^{121301201312331} is an apocalyptic number.

121301201312331 is a deficient number, since it is larger than the sum of its proper divisors (40433733770781).

121301201312331 is an equidigital number, since it uses as much as digits as its factorization.

121301201312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40433733770780.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121301201312331 its reverse (133213102103121), we get a palindrome (254514303415452).

The spelling of 121301201312331 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred one million, three hundred twelve thousand, three hundred thirty-one".