1131251254122 has 16 divisors (see below), whose sum is σ = 2468184554592. Its totient is φ = 342803410320.

The previous prime is 1131251254069. The next prime is 1131251254169. The reversal of 1131251254122 is 2214521521311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131251254122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8570085193 + ... + 8570085324.

It is an arithmetic number, because the mean of its divisors is an integer number (154261534662).

Almost surely, 2^{1131251254122} is an apocalyptic number.

1131251254122 is an abundant number, since it is smaller than the sum of its proper divisors (1336933300470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131251254122 is a wasteful number, since it uses less digits than its factorization.

1131251254122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17140170533.

The product of its digits is 4800, while the sum is 30.

Adding to 1131251254122 its reverse (2214521521311), we get a palindrome (3345772775433).

The spelling of 1131251254122 in words is "one trillion, one hundred thirty-one billion, two hundred fifty-one million, two hundred fifty-four thousand, one hundred twenty-two".