1325605723143 has 48 divisors (see below), whose sum is σ = 2029845510144. Its totient is φ = 767497610880.

The previous prime is 1325605723121. The next prime is 1325605723147. The reversal of 1325605723143 is 3413275065231.

It is a happy number.

It is not a de Polignac number, because 1325605723143 - 2²⁹ = 1325068852231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1325605723095 and 1325605723104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325605723147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 220471 + ... + 1643112.

It is an arithmetic number, because the mean of its divisors is an integer number (42288448128).

Almost surely, 2^{1325605723143} is an apocalyptic number.

1325605723143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1325605723143 is a deficient number, since it is larger than the sum of its proper divisors (704239787001).

1325605723143 is a wasteful number, since it uses less digits than its factorization.

1325605723143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863696 (or 1863683 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 1325605723143 in words is "one trillion, three hundred twenty-five billion, six hundred five million, seven hundred twenty-three thousand, one hundred forty-three".