26113121 has 2 divisors, whose sum is σ = 26113122. Its totient is φ = 26113120.

The previous prime is 26113097. The next prime is 26113123. The reversal of 26113121 is 12131162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 7623121 = 4300^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 26113121 - 2¹⁴ = 26096737 is a prime.

Together with 26113123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26113121.

It is not a weakly prime, because it can be changed into another prime (26113123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13056560 + 13056561.

It is an arithmetic number, because the mean of its divisors is an integer number (13056561).

Almost surely, 2^26113121 is an apocalyptic number.

It is an amenable number.

26113121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26113121 is an equidigital number, since it uses as much as digits as its factorization.

26113121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 17.

The square root of 26113121 is about 5110.0999011761. The cubic root of 26113121 is about 296.6786269358.

Adding to 26113121 its reverse (12131162), we get a palindrome (38244283).

The spelling of 26113121 in words is "twenty-six million, one hundred thirteen thousand, one hundred twenty-one".