1111020021011 has 8 divisors (see below), whose sum is σ = 1179398244960. Its totient is φ = 1042977808768.

The previous prime is 1111020020983. The next prime is 1111020021043. The reversal of 1111020021011 is 1101200201111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111020021011 - 2⁶ = 1111020020947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111020020983 and 1111020021001.

It is not an unprimeable number, because it can be changed into a prime (1111020021211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83996111 + ... + 84009336.

It is an arithmetic number, because the mean of its divisors is an integer number (147424780620).

Almost surely, 2^{1111020021011} is an apocalyptic number.

1111020021011 is a deficient number, since it is larger than the sum of its proper divisors (68378223949).

1111020021011 is a wasteful number, since it uses less digits than its factorization.

1111020021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168005853.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1111020021011 its reverse (1101200201111), we get a palindrome (2212220222122).

The spelling of 1111020021011 in words is "one trillion, one hundred eleven billion, twenty million, twenty-one thousand, eleven".