1121352250665 has 16 divisors (see below), whose sum is σ = 1811582667648. Its totient is φ = 592248178176.

The previous prime is 1121352250661. The next prime is 1121352250679. The reversal of 1121352250665 is 5660522531211.

It is not a de Polignac number, because 1121352250665 - 2² = 1121352250661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121352250661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 362895624 + ... + 362898713.

It is an arithmetic number, because the mean of its divisors is an integer number (113223916728).

Almost surely, 2^{1121352250665} is an apocalyptic number.

1121352250665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121352250665 is a deficient number, since it is larger than the sum of its proper divisors (690230416983).

1121352250665 is a wasteful number, since it uses less digits than its factorization.

1121352250665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725794448.

The product of its (nonzero) digits is 108000, while the sum is 39.

Adding to 1121352250665 its reverse (5660522531211), we get a palindrome (6781874781876).

The spelling of 1121352250665 in words is "one trillion, one hundred twenty-one billion, three hundred fifty-two million, two hundred fifty thousand, six hundred sixty-five".