101111009485788 has 72 divisors (see below), whose sum is σ = 259410387021968. Its totient is φ = 33199413401088.

The previous prime is 101111009485757. The next prime is 101111009485789. The reversal of 101111009485788 is 887584900111101.

It is a happy number.

101111009485788 is a `hidden beast` number, since 1 + 0 + 1 + 11 + 10 + 0 + 9 + 48 + 578 + 8 = 666.

It is a super-2 number, since 2×101111009485788² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111009485789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66282570 + ... + 67790862.

Almost surely, 2^{101111009485788} is an apocalyptic number.

101111009485788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

101111009485788 is an abundant number, since it is smaller than the sum of its proper divisors (158299377536180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101111009485788 is a wasteful number, since it uses less digits than its factorization.

101111009485788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536163 (or 1536158 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 54.

Adding to 101111009485788 its reverse (887584900111101), we get a palindrome (988695909596889).

The spelling of 101111009485788 in words is "one hundred one trillion, one hundred eleven billion, nine million, four hundred eighty-five thousand, seven hundred eighty-eight".