1401220171173 has 32 divisors (see below), whose sum is σ = 1996309324800. Its totient is φ = 872294976000.

The previous prime is 1401220171139. The next prime is 1401220171189. The reversal of 1401220171173 is 3711710221041.

It is not a de Polignac number, because 1401220171173 - 2⁹ = 1401220170661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401220171173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401220171103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4178023 + ... + 4500923.

It is an arithmetic number, because the mean of its divisors is an integer number (62384666400).

Almost surely, 2^{1401220171173} is an apocalyptic number.

It is an amenable number.

1401220171173 is a deficient number, since it is larger than the sum of its proper divisors (595089153627).

1401220171173 is a wasteful number, since it uses less digits than its factorization.

1401220171173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324573.

The product of its (nonzero) digits is 2352, while the sum is 30.

The spelling of 1401220171173 in words is "one trillion, four hundred one billion, two hundred twenty million, one hundred seventy-one thousand, one hundred seventy-three".