13342329081 has 27 divisors (see below), whose sum is σ = 19482231951. Its totient is φ = 8799013584.

The previous prime is 13342329073. The next prime is 13342329083. The reversal of 13342329081 is 18092324331.

The square root of 13342329081 is 115509.

It is a perfect power (a square), and thus also a powerful number.

13342329081 is a `hidden beast` number, since 1 + 334 + 232 + 90 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2299682025 + 11042647056 = 47955^2 + 105084^2 .

It is not a de Polignac number, because 13342329081 - 2³ = 13342329073 is a prime.

It is a super-2 number, since 2×13342329081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13342329083) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48167115 + ... + 48167391.

Almost surely, 2^13342329081 is an apocalyptic number.

13342329081 is the 115509-th square number.

13342329081 is the 57755-th centered octagonal number.

It is an amenable number.

13342329081 is a deficient number, since it is larger than the sum of its proper divisors (6139902870).

13342329081 is an frugal number, since it uses more digits than its factorization.

13342329081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Multiplying 13342329081 by its sum of digits (36), we get a square (480323846916 = 693054²).

The spelling of 13342329081 in words is "thirteen billion, three hundred forty-two million, three hundred twenty-nine thousand, eighty-one".