11012121604345 has 16 divisors (see below), whose sum is σ = 13306422790800. Its totient is φ = 8748474384384.

The previous prime is 11012121604321. The next prime is 11012121604357. The reversal of 11012121604345 is 54340612121011.

11012121604345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1644188143081 + 9367933461264 = 1282259^2 + 3060708^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012121604345 - 2¹¹ = 11012121602297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342489 + ... + 4881241.

It is an arithmetic number, because the mean of its divisors is an integer number (831651424425).

Almost surely, 2^{11012121604345} is an apocalyptic number.

It is an amenable number.

11012121604345 is a deficient number, since it is larger than the sum of its proper divisors (2294301186455).

11012121604345 is a wasteful number, since it uses less digits than its factorization.

11012121604345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543084.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 11012121604345 its reverse (54340612121011), we get a palindrome (65352733725356).

The spelling of 11012121604345 in words is "eleven trillion, twelve billion, one hundred twenty-one million, six hundred four thousand, three hundred forty-five".