121320414641 has 2 divisors, whose sum is σ = 121320414642. Its totient is φ = 121320414640.

The previous prime is 121320414581. The next prime is 121320414659. The reversal of 121320414641 is 146414023121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120631877041 + 688537600 = 347321^2 + 26240^2 .

It is an emirp because it is prime and its reverse (146414023121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121320414641 - 2⁶ = 121320414577 is a prime.

It is not a weakly prime, because it can be changed into another prime (121320414661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660207320 + 60660207321.

It is an arithmetic number, because the mean of its divisors is an integer number (60660207321).

Almost surely, 2^121320414641 is an apocalyptic number.

It is an amenable number.

121320414641 is a deficient number, since it is larger than the sum of its proper divisors (1).

121320414641 is an equidigital number, since it uses as much as digits as its factorization.

121320414641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 121320414641 its reverse (146414023121), we get a palindrome (267734437762).

The spelling of 121320414641 in words is "one hundred twenty-one billion, three hundred twenty million, four hundred fourteen thousand, six hundred forty-one".