11012111201405 has 24 divisors (see below), whose sum is σ = 13894643972952. Its totient is φ = 8372249714304.

The previous prime is 11012111201341. The next prime is 11012111201407. The reversal of 11012111201405 is 50410211121011.

It can be written as a sum of positive squares in 4 ways, for example, as 2899674282649 + 8112436918756 = 1702843^2 + 2848234^2 .

It is not a de Polignac number, because 11012111201405 - 2⁶ = 11012111201341 is a prime.

It is a super-2 number, since 2×11012111201405² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012111201407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15754454 + ... + 16438583.

It is an arithmetic number, because the mean of its divisors is an integer number (578943498873).

Almost surely, 2^{11012111201405} is an apocalyptic number.

It is an amenable number.

11012111201405 is a deficient number, since it is larger than the sum of its proper divisors (2882532771547).

11012111201405 is an equidigital number, since it uses as much as digits as its factorization.

11012111201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32193165 (or 32193122 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 20.

Adding to 11012111201405 its reverse (50410211121011), we get a palindrome (61422322322416).

The spelling of 11012111201405 in words is "eleven trillion, twelve billion, one hundred eleven million, two hundred one thousand, four hundred five".