723122131103 has 2 divisors, whose sum is σ = 723122131104. Its totient is φ = 723122131102.

The previous prime is 723122131091. The next prime is 723122131141. The reversal of 723122131103 is 301131221327.

It is a weak prime.

It is an emirp because it is prime and its reverse (301131221327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723122131103 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723122131183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361561065551 + 361561065552.

It is an arithmetic number, because the mean of its divisors is an integer number (361561065552).

Almost surely, 2^723122131103 is an apocalyptic number.

723122131103 is a deficient number, since it is larger than the sum of its proper divisors (1).

723122131103 is an equidigital number, since it uses as much as digits as its factorization.

723122131103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The spelling of 723122131103 in words is "seven hundred twenty-three billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred three".