121340241231 has 24 divisors (see below), whose sum is σ = 178359850032. Its totient is φ = 73321248000.

The previous prime is 121340241229. The next prime is 121340241241. The reversal of 121340241231 is 132142043121.

It is not a de Polignac number, because 121340241231 - 2¹ = 121340241229 is a prime.

It is a super-2 number, since 2×121340241231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121340241241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373620 + ... + 618281.

It is an arithmetic number, because the mean of its divisors is an integer number (7431660418).

Almost surely, 2^121340241231 is an apocalyptic number.

121340241231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121340241231 is a deficient number, since it is larger than the sum of its proper divisors (57019608801).

121340241231 is a wasteful number, since it uses less digits than its factorization.

121340241231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992263 (or 992252 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121340241231 its reverse (132142043121), we get a palindrome (253482284352).

The spelling of 121340241231 in words is "one hundred twenty-one billion, three hundred forty million, two hundred forty-one thousand, two hundred thirty-one".