121020431141 has 2 divisors, whose sum is σ = 121020431142. Its totient is φ = 121020431140.

The previous prime is 121020431111. The next prime is 121020431149. The reversal of 121020431141 is 141134020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84512304100 + 36508127041 = 290710^2 + 191071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121020431141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020431149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510215570 + 60510215571.

It is an arithmetic number, because the mean of its divisors is an integer number (60510215571).

Almost surely, 2^121020431141 is an apocalyptic number.

It is an amenable number.

121020431141 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020431141 is an equidigital number, since it uses as much as digits as its factorization.

121020431141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121020431141 its reverse (141134020121), we get a palindrome (262154451262).

The spelling of 121020431141 in words is "one hundred twenty-one billion, twenty million, four hundred thirty-one thousand, one hundred forty-one".