71323123 has 2 divisors, whose sum is σ = 71323124. Its totient is φ = 71323122.

The previous prime is 71323061. The next prime is 71323141. The reversal of 71323123 is 32132317.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71323123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71323094 and 71323103.

It is not a weakly prime, because it can be changed into another prime (71323193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35661561 + 35661562.

It is an arithmetic number, because the mean of its divisors is an integer number (35661562).

Almost surely, 2^71323123 is an apocalyptic number.

71323123 is a deficient number, since it is larger than the sum of its proper divisors (1).

71323123 is an equidigital number, since it uses as much as digits as its factorization.

71323123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 22.

The square root of 71323123 is about 8445.3018300118. The cubic root of 71323123 is about 414.7089903514.

The spelling of 71323123 in words is "seventy-one million, three hundred twenty-three thousand, one hundred twenty-three".