13520339923 has 2 divisors, whose sum is σ = 13520339924. Its totient is φ = 13520339922.

The previous prime is 13520339879. The next prime is 13520339957. The reversal of 13520339923 is 32993302531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13520339923 - 2¹³ = 13520331731 is a prime.

It is not a weakly prime, because it can be changed into another prime (13520339123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760169961 + 6760169962.

It is an arithmetic number, because the mean of its divisors is an integer number (6760169962).

Almost surely, 2^13520339923 is an apocalyptic number.

13520339923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13520339923 is an equidigital number, since it uses as much as digits as its factorization.

13520339923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 40.

The spelling of 13520339923 in words is "thirteen billion, five hundred twenty million, three hundred thirty-nine thousand, nine hundred twenty-three".