1021101111113 has 4 divisors (see below), whose sum is σ = 1021172626068. Its totient is φ = 1021029596160.

The previous prime is 1021101111077. The next prime is 1021101111139. The reversal of 1021101111113 is 3111111011201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56535523984 + 964565587129 = 237772^2 + 982123^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021101111113 - 2⁶ = 1021101111049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021101111413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35736056 + ... + 35764617.

It is an arithmetic number, because the mean of its divisors is an integer number (255293156517).

Almost surely, 2^{1021101111113} is an apocalyptic number.

It is an amenable number.

1021101111113 is a deficient number, since it is larger than the sum of its proper divisors (71514955).

1021101111113 is an equidigital number, since it uses as much as digits as its factorization.

1021101111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71514954.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 1021101111113 its reverse (3111111011201), we get a palindrome (4132212122314).

The spelling of 1021101111113 in words is "one trillion, twenty-one billion, one hundred one million, one hundred eleven thousand, one hundred thirteen".