13983523109431 has 2 divisors, whose sum is σ = 13983523109432. Its totient is φ = 13983523109430.

The previous prime is 13983523109417. The next prime is 13983523109449. The reversal of 13983523109431 is 13490132538931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13983523109431 - 2¹¹ = 13983523107383 is a prime.

It is a super-2 number, since 2×13983523109431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13983523109401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6991761554715 + 6991761554716.

It is an arithmetic number, because the mean of its divisors is an integer number (6991761554716).

Almost surely, 2^{13983523109431} is an apocalyptic number.

13983523109431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13983523109431 is an equidigital number, since it uses as much as digits as its factorization.

13983523109431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 13983523109431 in words is "thirteen trillion, nine hundred eighty-three billion, five hundred twenty-three million, one hundred nine thousand, four hundred thirty-one".