1146531023621 has 4 divisors (see below), whose sum is σ = 1146550062252. Its totient is φ = 1146511984992.

The previous prime is 1146531023593. The next prime is 1146531023623. The reversal of 1146531023621 is 1263201356411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1105894108225 + 40636915396 = 1051615^2 + 201586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146531023621 - 2¹⁸ = 1146530761477 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 (1146531023623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9428696 + ... + 9549521.

It is an arithmetic number, because the mean of its divisors is an integer number (286637515563).

Almost surely, 2^{1146531023621} is an apocalyptic number.

It is an amenable number.

1146531023621 is a deficient number, since it is larger than the sum of its proper divisors (19038631).

1146531023621 is an equidigital number, since it uses as much as digits as its factorization.

1146531023621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19038630.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1146531023621 in words is "one trillion, one hundred forty-six billion, five hundred thirty-one million, twenty-three thousand, six hundred twenty-one".