1111011130021 has 16 divisors (see below), whose sum is σ = 1217214633600. Its totient is φ = 1007783840448.

The previous prime is 1111011129983. The next prime is 1111011130069. The reversal of 1111011130021 is 1200311101111.

It is a cyclic number.

It is not a de Polignac number, because 1111011130021 - 2¹⁵ = 1111011097253 is a prime.

It is a super-3 number, since 3×1111011130021³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111011129983 and 1111011130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111011130121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1756635 + ... + 2303863.

It is an arithmetic number, because the mean of its divisors is an integer number (76075914600).

Almost surely, 2^{1111011130021} is an apocalyptic number.

It is an amenable number.

1111011130021 is a deficient number, since it is larger than the sum of its proper divisors (106203503579).

1111011130021 is a wasteful number, since it uses less digits than its factorization.

1111011130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549948.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1111011130021 its reverse (1200311101111), we get a palindrome (2311322231132).

The spelling of 1111011130021 in words is "one trillion, one hundred eleven billion, eleven million, one hundred thirty thousand, twenty-one".