101120211987 has 4 divisors (see below), whose sum is σ = 134826949320. Its totient is φ = 67413474656.

The previous prime is 101120211979. The next prime is 101120212001. The reversal of 101120211987 is 789112021101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101120211987 - 2³ = 101120211979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101120211947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16853368662 + ... + 16853368667.

It is an arithmetic number, because the mean of its divisors is an integer number (33706737330).

Almost surely, 2^101120211987 is an apocalyptic number.

101120211987 is a deficient number, since it is larger than the sum of its proper divisors (33706737333).

101120211987 is an equidigital number, since it uses as much as digits as its factorization.

101120211987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33706737332.

The product of its (nonzero) digits is 2016, while the sum is 33.

The spelling of 101120211987 in words is "one hundred one billion, one hundred twenty million, two hundred eleven thousand, nine hundred eighty-seven".