7242123113 has 2 divisors, whose sum is σ = 7242123114. Its totient is φ = 7242123112.

The previous prime is 7242123079. The next prime is 7242123139. The reversal of 7242123113 is 3113212427.

It is an a-pointer prime, because the next prime (7242123139) can be obtained adding 7242123113 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6692548864 + 549574249 = 81808^2 + 23443^2 .

It is a cyclic number.

It is not a de Polignac number, because 7242123113 - 2³² = 2947155817 is a prime.

It is not a weakly prime, because it can be changed into another prime (7242126113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621061556 + 3621061557.

It is an arithmetic number, because the mean of its divisors is an integer number (3621061557).

Almost surely, 2^7242123113 is an apocalyptic number.

It is an amenable number.

7242123113 is a deficient number, since it is larger than the sum of its proper divisors (1).

7242123113 is an equidigital number, since it uses as much as digits as its factorization.

7242123113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 7242123113 is about 85100.6645861241. The cubic root of 7242123113 is about 1934.7371362483.

The spelling of 7242123113 in words is "seven billion, two hundred forty-two million, one hundred twenty-three thousand, one hundred thirteen".