121131431341 has 2 divisors, whose sum is σ = 121131431342. Its totient is φ = 121131431340.

The previous prime is 121131431339. The next prime is 121131431347. The reversal of 121131431341 is 143134131121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105638650441 + 15492780900 = 325021^2 + 124470^2 .

It is a cyclic number.

It is not a de Polignac number, because 121131431341 - 2¹ = 121131431339 is a prime.

Together with 121131431339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121131431347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565715670 + 60565715671.

It is an arithmetic number, because the mean of its divisors is an integer number (60565715671).

Almost surely, 2^121131431341 is an apocalyptic number.

It is an amenable number.

121131431341 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131431341 is an equidigital number, since it uses as much as digits as its factorization.

121131431341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

Adding to 121131431341 its reverse (143134131121), we get a palindrome (264265562462).

The spelling of 121131431341 in words is "one hundred twenty-one billion, one hundred thirty-one million, four hundred thirty-one thousand, three hundred forty-one".