1011320010987 has 64 divisors (see below), whose sum is σ = 1677637785600. Its totient is φ = 532401868800.

The previous prime is 1011320010947. The next prime is 1011320010997. The reversal of 1011320010987 is 7890100231101.

It is not a de Polignac number, because 1011320010987 - 2⁷ = 1011320010859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1011320010917) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78750687 + ... + 78763527.

It is an arithmetic number, because the mean of its divisors is an integer number (26213090400).

Almost surely, 2^{1011320010987} is an apocalyptic number.

1011320010987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1011320010987 is a deficient number, since it is larger than the sum of its proper divisors (666317774613).

1011320010987 is a wasteful number, since it uses less digits than its factorization.

1011320010987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23684.

The product of its (nonzero) digits is 3024, while the sum is 33.

The spelling of 1011320010987 in words is "one trillion, eleven billion, three hundred twenty million, ten thousand, nine hundred eighty-seven".