121121012141 has 2 divisors, whose sum is σ = 121121012142. Its totient is φ = 121121012140.

The previous prime is 121121012087. The next prime is 121121012209. The reversal of 121121012141 is 141210121121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120094130116 + 1026882025 = 346546^2 + 32045^2 .

It is a cyclic number.

It is not a de Polignac number, because 121121012141 - 2¹⁴ = 121120995757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121072141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560506070 + 60560506071.

It is an arithmetic number, because the mean of its divisors is an integer number (60560506071).

Almost surely, 2^121121012141 is an apocalyptic number.

It is an amenable number.

121121012141 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121012141 is an equidigital number, since it uses as much as digits as its factorization.

121121012141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121121012141 its reverse (141210121121), we get a palindrome (262331133262).

The spelling of 121121012141 in words is "one hundred twenty-one billion, one hundred twenty-one million, twelve thousand, one hundred forty-one".