723173422122751 has 2 divisors, whose sum is σ = 723173422122752. Its totient is φ = 723173422122750.

The previous prime is 723173422122721. The next prime is 723173422122761. The reversal of 723173422122751 is 157221224371327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 723173422122751 - 2²¹ = 723173420025599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 723173422122695 and 723173422122704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723173422122721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361586711061375 + 361586711061376.

It is an arithmetic number, because the mean of its divisors is an integer number (361586711061376).

Almost surely, 2^{723173422122751} is an apocalyptic number.

723173422122751 is a deficient number, since it is larger than the sum of its proper divisors (1).

723173422122751 is an equidigital number, since it uses as much as digits as its factorization.

723173422122751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 49.

The spelling of 723173422122751 in words is "seven hundred twenty-three trillion, one hundred seventy-three billion, four hundred twenty-two million, one hundred twenty-two thousand, seven hundred fifty-one".