1311001673401 has 16 divisors (see below), whose sum is σ = 1513673424000. Its totient is φ = 1112229675648.

The previous prime is 1311001673363. The next prime is 1311001673407. The reversal of 1311001673401 is 1043761001131.

It is not a de Polignac number, because 1311001673401 - 2¹⁵ = 1311001640633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311001673401.

It is not an unprimeable number, because it can be changed into a prime (1311001673407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1925596 + ... + 2515933.

It is an arithmetic number, because the mean of its divisors is an integer number (94604589000).

Almost surely, 2^{1311001673401} is an apocalyptic number.

It is an amenable number.

1311001673401 is a deficient number, since it is larger than the sum of its proper divisors (202671750599).

1311001673401 is a wasteful number, since it uses less digits than its factorization.

1311001673401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441968.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 1311001673401 its reverse (1043761001131), we get a palindrome (2354762674532).

The spelling of 1311001673401 in words is "one trillion, three hundred eleven billion, one million, six hundred seventy-three thousand, four hundred one".