1125021344211 has 32 divisors (see below), whose sum is σ = 1696277760000. Its totient is φ = 736798892544.

The previous prime is 1125021344191. The next prime is 1125021344219. The reversal of 1125021344211 is 1124431205211.

1125021344211 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 0 + 213 + 442 + 1 + 1 = 666.

It is not a de Polignac number, because 1125021344211 - 2¹¹ = 1125021342163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1125021344219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 900750 + ... + 1749683.

It is an arithmetic number, because the mean of its divisors is an integer number (53008680000).

Almost surely, 2^{1125021344211} is an apocalyptic number.

1125021344211 is a deficient number, since it is larger than the sum of its proper divisors (571256415789).

1125021344211 is a wasteful number, since it uses less digits than its factorization.

1125021344211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650720 (or 2650714 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 1125021344211 its reverse (1124431205211), we get a palindrome (2249452549422).

The spelling of 1125021344211 in words is "one trillion, one hundred twenty-five billion, twenty-one million, three hundred forty-four thousand, two hundred eleven".