1305422123623 has 8 divisors (see below), whose sum is σ = 1352905501680. Its totient is φ = 1258103333760.

The previous prime is 1305422123609. The next prime is 1305422123627. The reversal of 1305422123623 is 3263212245031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305422123623 - 2²⁹ = 1304885252711 is a prime.

It is a super-2 number, since 2×1305422123623² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305422123627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41130898 + ... + 41162623.

It is an arithmetic number, because the mean of its divisors is an integer number (169113187710).

Almost surely, 2^{1305422123623} is an apocalyptic number.

1305422123623 is a deficient number, since it is larger than the sum of its proper divisors (47483378057).

1305422123623 is an equidigital number, since it uses as much as digits as its factorization.

1305422123623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82294097.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 1305422123623 its reverse (3263212245031), we get a palindrome (4568634368654).

The spelling of 1305422123623 in words is "one trillion, three hundred five billion, four hundred twenty-two million, one hundred twenty-three thousand, six hundred twenty-three".