121012040141 has 2 divisors, whose sum is σ = 121012040142. Its totient is φ = 121012040140.

The previous prime is 121012040137. The next prime is 121012040153. The reversal of 121012040141 is 141040210121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108781892041 + 12230148100 = 329821^2 + 110590^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012040141 - 2² = 121012040137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012040161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506020070 + 60506020071.

It is an arithmetic number, because the mean of its divisors is an integer number (60506020071).

Almost surely, 2^121012040141 is an apocalyptic number.

It is an amenable number.

121012040141 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012040141 is an equidigital number, since it uses as much as digits as its factorization.

121012040141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121012040141 its reverse (141040210121), we get a palindrome (262052250262).

The spelling of 121012040141 in words is "one hundred twenty-one billion, twelve million, forty thousand, one hundred forty-one".