102100102111987 has 8 divisors (see below), whose sum is σ = 116693700924416. Its totient is φ = 87508470784392.

The previous prime is 102100102111951. The next prime is 102100102112053. The reversal of 102100102111987 is 789111201001201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102100102111987 - 2¹⁵ = 102100102079219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102100102111907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491760003 + ... + 491967580.

It is an arithmetic number, because the mean of its divisors is an integer number (14586712615552).

Almost surely, 2^{102100102111987} is an apocalyptic number.

102100102111987 is a deficient number, since it is larger than the sum of its proper divisors (14593598812429).

102100102111987 is an equidigital number, since it uses as much as digits as its factorization.

102100102111987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983742417.

The product of its (nonzero) digits is 2016, while the sum is 34.

The spelling of 102100102111987 in words is "one hundred two trillion, one hundred billion, one hundred two million, one hundred eleven thousand, nine hundred eighty-seven".