1125323051111 has 16 divisors (see below), whose sum is σ = 1297104614400. Its totient is φ = 956332022688.

The previous prime is 1125323051077. The next prime is 1125323051119. The reversal of 1125323051111 is 1111503235211.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1125323051111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125323051119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085525 + ... + 1851758.

It is an arithmetic number, because the mean of its divisors is an integer number (81069038400).

Almost surely, 2^{1125323051111} is an apocalyptic number.

1125323051111 is a deficient number, since it is larger than the sum of its proper divisors (171781563289).

1125323051111 is a wasteful number, since it uses less digits than its factorization.

1125323051111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937758.

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 1125323051111 its reverse (1111503235211), we get a palindrome (2236826286322).

The spelling of 1125323051111 in words is "one trillion, one hundred twenty-five billion, three hundred twenty-three million, fifty-one thousand, one hundred eleven".