121431040301 has 4 divisors (see below), whose sum is σ = 121431892704. Its totient is φ = 121430187900.

The previous prime is 121431040243. The next prime is 121431040303. The reversal of 121431040301 is 103040134121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 103040134121 = 457 ⋅225470753.

It is a cyclic number.

It is not a de Polignac number, because 121431040301 - 2²² = 121426845997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121431040303) 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, 154985 + ... + 516606.

It is an arithmetic number, because the mean of its divisors is an integer number (30357973176).

Almost surely, 2^121431040301 is an apocalyptic number.

It is an amenable number.

121431040301 is a deficient number, since it is larger than the sum of its proper divisors (852403).

121431040301 is an equidigital number, since it uses as much as digits as its factorization.

121431040301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852402.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121431040301 its reverse (103040134121), we get a palindrome (224471174422).

The spelling of 121431040301 in words is "one hundred twenty-one billion, four hundred thirty-one million, forty thousand, three hundred one".