121013441 has 2 divisors, whose sum is σ = 121013442. Its totient is φ = 121013440.

The previous prime is 121013437. The next prime is 121013449. The reversal of 121013441 is 144310121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82882816 + 38130625 = 9104^2 + 6175^2 .

It is a cyclic number.

It is not a de Polignac number, because 121013441 - 2² = 121013437 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121013449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506720 + 60506721.

It is an arithmetic number, because the mean of its divisors is an integer number (60506721).

Almost surely, 2^121013441 is an apocalyptic number.

It is an amenable number.

121013441 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013441 is an equidigital number, since it uses as much as digits as its factorization.

121013441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121013441 is about 11000.6109375798. The cubic root of 121013441 is about 494.6270577959.

Adding to 121013441 its reverse (144310121), we get a palindrome (265323562).

The spelling of 121013441 in words is "one hundred twenty-one million, thirteen thousand, four hundred forty-one".