11211125345 has 16 divisors (see below), whose sum is σ = 15402211968. Its totient is φ = 7674151680.

The previous prime is 11211125311. The next prime is 11211125357. The reversal of 11211125345 is 54352111211.

It is not a de Polignac number, because 11211125345 - 2¹⁸ = 11210863201 is a prime.

It is a Duffinian number.

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, 260504 + ... + 300473.

It is an arithmetic number, because the mean of its divisors is an integer number (962638248).

Almost surely, 2^11211125345 is an apocalyptic number.

It is an amenable number.

11211125345 is a deficient number, since it is larger than the sum of its proper divisors (4191086623).

11211125345 is an equidigital number, since it uses as much as digits as its factorization.

11211125345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561560.

The product of its digits is 1200, while the sum is 26.

Adding to 11211125345 its reverse (54352111211), we get a palindrome (65563236556).

The spelling of 11211125345 in words is "eleven billion, two hundred eleven million, one hundred twenty-five thousand, three hundred forty-five".