1001010111988 has 48 divisors (see below), whose sum is σ = 1868666771664. Its totient is φ = 467556526080.

The previous prime is 1001010111977. The next prime is 1001010112007. The reversal of 1001010111988 is 8891110101001.

It can be written as a sum of positive squares in 8 ways, for example, as 51921091044 + 949089020944 = 227862^2 + 974212^2 .

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5550970 + ... + 5728462.

It is an arithmetic number, because the mean of its divisors is an integer number (38930557743).

Almost surely, 2^{1001010111988} is an apocalyptic number.

It is an amenable number.

1001010111988 is a deficient number, since it is larger than the sum of its proper divisors (867656659676).

1001010111988 is a wasteful number, since it uses less digits than its factorization.

1001010111988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178132 (or 178130 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 31.

Adding to 1001010111988 its reverse (8891110101001), we get a palindrome (9892120212989).

The spelling of 1001010111988 in words is "one trillion, one billion, ten million, one hundred eleven thousand, nine hundred eighty-eight".