123501071 has 2 divisors, whose sum is σ = 123501072. Its totient is φ = 123501070.

The previous prime is 123501047. The next prime is 123501089. The reversal of 123501071 is 170105321.

It is a strong prime.

It is an emirp because it is prime and its reverse (170105321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123501071 - 2²⁶ = 56392207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123501011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61750535 + 61750536.

It is an arithmetic number, because the mean of its divisors is an integer number (61750536).

Almost surely, 2^123501071 is an apocalyptic number.

123501071 is a deficient number, since it is larger than the sum of its proper divisors (1).

123501071 is an equidigital number, since it uses as much as digits as its factorization.

123501071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 123501071 is about 11113.1035719101. The cubic root of 123501071 is about 497.9933857715.

Adding to 123501071 its reverse (170105321), we get a palindrome (293606392).

The spelling of 123501071 in words is "one hundred twenty-three million, five hundred one thousand, seventy-one".