13400530432331 has 16 divisors (see below), whose sum is σ = 15641061909504. Its totient is φ = 11241551490624.

The previous prime is 13400530432307. The next prime is 13400530432379. The reversal of 13400530432331 is 13323403500431.

It is not a de Polignac number, because 13400530432331 - 2¹⁸ = 13400530170187 is a prime.

It is a super-2 number, since 2×13400530432331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13400530432631) 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, 16687076 + ... + 17471678.

It is an arithmetic number, because the mean of its divisors is an integer number (977566369344).

Almost surely, 2^{13400530432331} is an apocalyptic number.

13400530432331 is a deficient number, since it is larger than the sum of its proper divisors (2240531477173).

13400530432331 is an equidigital number, since it uses as much as digits as its factorization.

13400530432331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836570.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 13400530432331 its reverse (13323403500431), we get a palindrome (26723933932762).

The spelling of 13400530432331 in words is "thirteen trillion, four hundred billion, five hundred thirty million, four hundred thirty-two thousand, three hundred thirty-one".