1111000101012 has 18 divisors (see below), whose sum is σ = 2808361366538. Its totient is φ = 370333366992.

The previous prime is 1111000100981. The next prime is 1111000101017. The reversal of 1111000101012 is 2101010001111.

It can be written as a sum of positive squares in only one way, i.e., 1080260894736 + 30739206276 = 1039356^2 + 175326^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 = 1111000100985 and 1111000101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000101017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15430556923 + ... + 15430556994.

Almost surely, 2^{1111000101012} is an apocalyptic number.

1111000101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111000101012 is an abundant number, since it is smaller than the sum of its proper divisors (1697361265526).

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

1111000101012 is a wasteful number, since it uses less digits than its factorization.

1111000101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30861113927 (or 30861113922 counting only the distinct ones).

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

Adding to 1111000101012 its reverse (2101010001111), we get a palindrome (3212010102123).

Subtracting 1111000101012 from its reverse (2101010001111), we obtain a palindrome (990009900099).

The spelling of 1111000101012 in words is "one trillion, one hundred eleven billion, one hundred one thousand, twelve".