1305603123401 has 8 divisors (see below), whose sum is σ = 1308156024000. Its totient is φ = 1303050738960.

The previous prime is 1305603123361. The next prime is 1305603123403. The reversal of 1305603123401 is 1043213065031.

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

It is a de Polignac number, because none of the positive numbers 2^k-1305603123401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305603123403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144900 + ... + 5392698.

It is an arithmetic number, because the mean of its divisors is an integer number (163519503000).

Almost surely, 2^{1305603123401} is an apocalyptic number.

It is an amenable number.

1305603123401 is a deficient number, since it is larger than the sum of its proper divisors (2552900599).

1305603123401 is an equidigital number, since it uses as much as digits as its factorization.

1305603123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258079.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 1305603123401 its reverse (1043213065031), we get a palindrome (2348816188432).

The spelling of 1305603123401 in words is "one trillion, three hundred five billion, six hundred three million, one hundred twenty-three thousand, four hundred one".