121011013 has 2 divisors, whose sum is σ = 121011014. Its totient is φ = 121011012.

The previous prime is 121010999. The next prime is 121011017. The reversal of 121011013 is 310110121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102880449 + 18130564 = 10143^2 + 4258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121011013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121011017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505506 + 60505507.

It is an arithmetic number, because the mean of its divisors is an integer number (60505507).

Almost surely, 2^121011013 is an apocalyptic number.

It is an amenable number.

121011013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011013 is an equidigital number, since it uses as much as digits as its factorization.

121011013 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 10.

The square root of 121011013 is about 11000.5005795191. The cubic root of 121011013 is about 494.6237497267.

Adding to 121011013 its reverse (310110121), we get a palindrome (431121134).

The spelling of 121011013 in words is "one hundred twenty-one million, eleven thousand, thirteen".