101109987413 has 2 divisors, whose sum is σ = 101109987414. Its totient is φ = 101109987412.

The previous prime is 101109987353. The next prime is 101109987449. The reversal of 101109987413 is 314789901101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84484979569 + 16625007844 = 290663^2 + 128938^2 .

It is a cyclic number.

It is not a de Polignac number, because 101109987413 - 2²⁶ = 101042878549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101109987493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50554993706 + 50554993707.

It is an arithmetic number, because the mean of its divisors is an integer number (50554993707).

Almost surely, 2^101109987413 is an apocalyptic number.

It is an amenable number.

101109987413 is a deficient number, since it is larger than the sum of its proper divisors (1).

101109987413 is an equidigital number, since it uses as much as digits as its factorization.

101109987413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 101109987413 in words is "one hundred one billion, one hundred nine million, nine hundred eighty-seven thousand, four hundred thirteen".