403402140311321 has 16 divisors (see below), whose sum is σ = 413295438935808. Its totient is φ = 393565409328000.

The previous prime is 403402140311279. The next prime is 403402140311371. The reversal of 403402140311321 is 123113041204304.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403402140311321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403402140311371) 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, 8091221 + ... + 29534253.

It is an arithmetic number, because the mean of its divisors is an integer number (25830964933488).

Almost surely, 2^{403402140311321} is an apocalyptic number.

It is an amenable number.

403402140311321 is a deficient number, since it is larger than the sum of its proper divisors (9893298624487).

403402140311321 is a wasteful number, since it uses less digits than its factorization.

403402140311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21444352.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 403402140311321 its reverse (123113041204304), we get a palindrome (526515181515625).

The spelling of 403402140311321 in words is "four hundred three trillion, four hundred two billion, one hundred forty million, three hundred eleven thousand, three hundred twenty-one".