123948511 has 2 divisors, whose sum is σ = 123948512. Its totient is φ = 123948510.

The previous prime is 123948499. The next prime is 123948527. The reversal of 123948511 is 115849321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123948511 - 2¹⁷ = 123817439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123948211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61974255 + 61974256.

It is an arithmetic number, because the mean of its divisors is an integer number (61974256).

Almost surely, 2^123948511 is an apocalyptic number.

123948511 is a deficient number, since it is larger than the sum of its proper divisors (1).

123948511 is an equidigital number, since it uses as much as digits as its factorization.

123948511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 34.

The square root of 123948511 is about 11133.2165612639. The cubic root of 123948511 is about 498.5940650660.

The spelling of 123948511 in words is "one hundred twenty-three million, nine hundred forty-eight thousand, five hundred eleven".