13102109987 has 2 divisors, whose sum is σ = 13102109988. Its totient is φ = 13102109986.

The previous prime is 13102109957. The next prime is 13102110023. The reversal of 13102109987 is 78990120131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13102109987 - 2¹⁰ = 13102108963 is a prime.

It is a super-2 number, since 2×13102109987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13102109957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551054993 + 6551054994.

It is an arithmetic number, because the mean of its divisors is an integer number (6551054994).

Almost surely, 2^13102109987 is an apocalyptic number.

13102109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13102109987 is an equidigital number, since it uses as much as digits as its factorization.

13102109987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 13102109987 in words is "thirteen billion, one hundred two million, one hundred nine thousand, nine hundred eighty-seven".