122513123 has 2 divisors, whose sum is σ = 122513124. Its totient is φ = 122513122.

The previous prime is 122513117. The next prime is 122513143. The reversal of 122513123 is 321315221.

It is an a-pointer prime, because the next prime (122513143) can be obtained adding 122513123 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122513123 - 2⁴ = 122513107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122513095 and 122513104.

It is not a weakly prime, because it can be changed into another prime (122513113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61256561 + 61256562.

It is an arithmetic number, because the mean of its divisors is an integer number (61256562).

Almost surely, 2^122513123 is an apocalyptic number.

122513123 is a deficient number, since it is larger than the sum of its proper divisors (1).

122513123 is an equidigital number, since it uses as much as digits as its factorization.

122513123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 20.

The square root of 122513123 is about 11068.5646314235. The cubic root of 122513123 is about 496.6619281462.

Adding to 122513123 its reverse (321315221), we get a palindrome (443828344).

The spelling of 122513123 in words is "one hundred twenty-two million, five hundred thirteen thousand, one hundred twenty-three".