10111011012 has 36 divisors (see below), whose sum is σ = 25991587440. Its totient is φ = 3313211952.

The previous prime is 10111010993. The next prime is 10111011047. The reversal of 10111011012 is 21011011101.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10111010985 and 10111011003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2378058 + ... + 2382305.

It is an arithmetic number, because the mean of its divisors is an integer number (721988540).

Almost surely, 2^10111011012 is an apocalyptic number.

10111011012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10111011012 is an abundant number, since it is smaller than the sum of its proper divisors (15880576428).

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

10111011012 is a wasteful number, since it uses less digits than its factorization.

10111011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760432 (or 4760427 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10111011012 its reverse (21011011101), we get a palindrome (31122022113).

The spelling of 10111011012 in words is "ten billion, one hundred eleven million, eleven thousand, twelve".