111020101021011 has 64 divisors (see below), whose sum is σ = 190112292421632. Its totient is φ = 56012699014272.

The previous prime is 111020101021009. The next prime is 111020101021021. The reversal of 111020101021011 is 110120101020111.

It is not a de Polignac number, because 111020101021011 - 2¹ = 111020101021009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111020101021021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 318315426 + ... + 318664008.

It is an arithmetic number, because the mean of its divisors is an integer number (2970504569088).

Almost surely, 2^{111020101021011} is an apocalyptic number.

111020101021011 is a deficient number, since it is larger than the sum of its proper divisors (79092191400621).

111020101021011 is a wasteful number, since it uses less digits than its factorization.

111020101021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399352.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111020101021011 its reverse (110120101020111), we get a palindrome (221140202041122).

The spelling of 111020101021011 in words is "one hundred eleven trillion, twenty billion, one hundred one million, twenty-one thousand, eleven".