121002041 has 2 divisors, whose sum is σ = 121002042. Its totient is φ = 121002040.

The previous prime is 121002019. The next prime is 121002047. The reversal of 121002041 is 140200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118374400 + 2627641 = 10880^2 + 1621^2 .

It is an emirp because it is prime and its reverse (140200121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121002041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121002047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501020 + 60501021.

It is an arithmetic number, because the mean of its divisors is an integer number (60501021).

Almost surely, 2^121002041 is an apocalyptic number.

It is an amenable number.

121002041 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002041 is an equidigital number, since it uses as much as digits as its factorization.

121002041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 121002041 is about 11000.0927723361. The cubic root of 121002041 is about 494.6115252912.

Adding to 121002041 its reverse (140200121), we get a palindrome (261202162).

It can be divided in two parts, 12100 and 2041, that added together give a palindrome (14141).

The spelling of 121002041 in words is "one hundred twenty-one million, two thousand, forty-one".