1001332012111 has 4 divisors (see below), whose sum is σ = 1002846887224. Its totient is φ = 999817137000.

The previous prime is 1001332012103. The next prime is 1001332012129. The reversal of 1001332012111 is 1112102331001.

It is a happy number.

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 1001332012111 - 2³ = 1001332012103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001332012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757436565 + ... + 757437886.

It is an arithmetic number, because the mean of its divisors is an integer number (250711721806).

Almost surely, 2^{1001332012111} is an apocalyptic number.

1001332012111 is a deficient number, since it is larger than the sum of its proper divisors (1514875113).

1001332012111 is an equidigital number, since it uses as much as digits as its factorization.

1001332012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514875112.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1001332012111 its reverse (1112102331001), we get a palindrome (2113434343112).

The spelling of 1001332012111 in words is "one trillion, one billion, three hundred thirty-two million, twelve thousand, one hundred eleven".