13120205405432 has 8 divisors (see below), whose sum is σ = 24600385135200. Its totient is φ = 6560102702712.

The previous prime is 13120205405431. The next prime is 13120205405471. The reversal of 13120205405432 is 23450450202131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120205405431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820012837832 + ... + 820012837847.

It is an arithmetic number, because the mean of its divisors is an integer number (3075048141900).

Almost surely, 2^{13120205405432} is an apocalyptic number.

It is an amenable number.

13120205405432 is a deficient number, since it is larger than the sum of its proper divisors (11480179729768).

13120205405432 is a wasteful number, since it uses less digits than its factorization.

13120205405432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640025675685 (or 1640025675681 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 13120205405432 its reverse (23450450202131), we get a palindrome (36570655607563).

The spelling of 13120205405432 in words is "thirteen trillion, one hundred twenty billion, two hundred five million, four hundred five thousand, four hundred thirty-two".