1121100201987 has 16 divisors (see below), whose sum is σ = 1511875451520. Its totient is φ = 738865651392.

The previous prime is 1121100201931. The next prime is 1121100202007. The reversal of 1121100201987 is 7891020011211.

It is not a de Polignac number, because 1121100201987 - 2¹⁵ = 1121100169219 is a prime.

It is a super-3 number, since 3×1121100201987³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121100203987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067568 + ... + 1838994.

It is an arithmetic number, because the mean of its divisors is an integer number (94492215720).

Almost surely, 2^{1121100201987} is an apocalyptic number.

1121100201987 is a deficient number, since it is larger than the sum of its proper divisors (390775249533).

1121100201987 is an equidigital number, since it uses as much as digits as its factorization.

1121100201987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776962.

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

The spelling of 1121100201987 in words is "one trillion, one hundred twenty-one billion, one hundred million, two hundred one thousand, nine hundred eighty-seven".