121013 has 2 divisors, whose sum is σ = 121014. Its totient is φ = 121012.

The previous prime is 121007. The next prime is 121019. The reversal of 121013 is 310121.

It is a balanced prime because it is at equal distance from previous prime (121007) and next prime (121019).

It can be written as a sum of positive squares in only one way, i.e., 117649 + 3364 = 343^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 121013 - 2⁴ = 120997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506 + 60507.

It is an arithmetic number, because the mean of its divisors is an integer number (60507).

2¹²¹⁰¹³ is an apocalyptic number.

It is an amenable number.

121013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013 is an equidigital number, since it uses as much as digits as its factorization.

121013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 121013 is about 347.8692283028. The cubic root of 121013 is about 49.4626456951.

Adding to 121013 its reverse (310121), we get a palindrome (431134).

The spelling of 121013 in words is "one hundred twenty-one thousand, thirteen".