1343257723 has 2 divisors, whose sum is σ = 1343257724. Its totient is φ = 1343257722.

The previous prime is 1343257717. The next prime is 1343257787. The reversal of 1343257723 is 3277523431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1343257723 - 2⁵ = 1343257691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343257793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671628861 + 671628862.

It is an arithmetic number, because the mean of its divisors is an integer number (671628862).

Almost surely, 2^1343257723 is an apocalyptic number.

1343257723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343257723 is an equidigital number, since it uses as much as digits as its factorization.

1343257723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 37.

The square root of 1343257723 is about 36650.4805289098. The cubic root of 1343257723 is about 1103.3664698496.

It can be divided in two parts, 1343257 and 723, that added together give a triangular number (1343980 = T₁₆₃₉).

The spelling of 1343257723 in words is "one billion, three hundred forty-three million, two hundred fifty-seven thousand, seven hundred twenty-three".