1123385575621 has 16 divisors (see below), whose sum is σ = 1163474202240. Its totient is φ = 1084070827840.

The previous prime is 1123385575619. The next prime is 1123385575649. The reversal of 1123385575621 is 1265755833211.

It is a cyclic number.

It is not a de Polignac number, because 1123385575621 - 2¹ = 1123385575619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123385575321) 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, 1220451 + ... + 1932943.

It is an arithmetic number, because the mean of its divisors is an integer number (72717137640).

Almost surely, 2^{1123385575621} is an apocalyptic number.

It is an amenable number.

1123385575621 is a deficient number, since it is larger than the sum of its proper divisors (40088626619).

1123385575621 is an equidigital number, since it uses as much as digits as its factorization.

1123385575621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713036.

The product of its digits is 1512000, while the sum is 49.

The spelling of 1123385575621 in words is "one trillion, one hundred twenty-three billion, three hundred eighty-five million, five hundred seventy-five thousand, six hundred twenty-one".