13432102921 has 2 divisors, whose sum is σ = 13432102922. Its totient is φ = 13432102920.

The previous prime is 13432102913. The next prime is 13432102967. The reversal of 13432102921 is 12920123431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9382053321 + 4050049600 = 96861^2 + 63640^2 .

It is a cyclic number.

It is not a de Polignac number, because 13432102921 - 2³ = 13432102913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13432102921.

It is not a weakly prime, because it can be changed into another prime (13432106921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6716051460 + 6716051461.

It is an arithmetic number, because the mean of its divisors is an integer number (6716051461).

Almost surely, 2^13432102921 is an apocalyptic number.

It is an amenable number.

13432102921 is a deficient number, since it is larger than the sum of its proper divisors (1).

13432102921 is an equidigital number, since it uses as much as digits as its factorization.

13432102921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 13432102921 in words is "thirteen billion, four hundred thirty-two million, one hundred two thousand, nine hundred twenty-one".