1111101012 has 72 divisors (see below), whose sum is σ = 3320553600. Its totient is φ = 306508608.

The previous prime is 1111101007. The next prime is 1111101071. The reversal of 1111101012 is 2101011111.

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 = 1111100985 and 1111101003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68712 + ... + 83327.

It is an arithmetic number, because the mean of its divisors is an integer number (46118800).

Almost surely, 2^1111101012 is an apocalyptic number.

1111101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111101012 is an abundant number, since it is smaller than the sum of its proper divisors (2209452588).

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

1111101012 is a wasteful number, since it uses less digits than its factorization.

1111101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152085 (or 152080 counting only the distinct ones).

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

The square root of 1111101012 is about 33333.1818463224. The cubic root of 1111101012 is about 1035.7410306131.

Adding to 1111101012 its reverse (2101011111), we get a palindrome (3212112123).

The spelling of 1111101012 in words is "one billion, one hundred eleven million, one hundred one thousand, twelve".