121234013 has 2 divisors, whose sum is σ = 121234014. Its totient is φ = 121234012.

The previous prime is 121233923. The next prime is 121234027. The reversal of 121234013 is 310432121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69939769 + 51294244 = 8363^2 + 7162^2 .

It is a cyclic number.

It is not a de Polignac number, because 121234013 - 2¹² = 121229917 is a prime.

It is a super-3 number, since 3×121234013³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121233982 and 121234000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121234063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60617006 + 60617007.

It is an arithmetic number, because the mean of its divisors is an integer number (60617007).

Almost surely, 2^121234013 is an apocalyptic number.

It is an amenable number.

121234013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121234013 is an equidigital number, since it uses as much as digits as its factorization.

121234013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121234013 is about 11010.6318165671. The cubic root of 121234013 is about 494.9273953982.

Adding to 121234013 its reverse (310432121), we get a palindrome (431666134).

The spelling of 121234013 in words is "one hundred twenty-one million, two hundred thirty-four thousand, thirteen".