1173400522443 has 20 divisors (see below), whose sum is σ = 1752943461808. Its totient is φ = 782228683440.

The previous prime is 1173400522423. The next prime is 1173400522453. The reversal of 1173400522443 is 3442250043711.

1173400522443 is a `hidden beast` number, since 1 + 1 + 7 + 3 + 400 + 5 + 2 + 244 + 3 = 666.

It is not a de Polignac number, because 1173400522443 - 2⁶ = 1173400522379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1173400522398 and 1173400522407.

It is not an unprimeable number, because it can be changed into a prime (1173400522423) 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 19 ways as a sum of consecutive naturals, for example, 1359105 + ... + 2047917.

Almost surely, 2^{1173400522443} is an apocalyptic number.

1173400522443 is a deficient number, since it is larger than the sum of its proper divisors (579542939365).

1173400522443 is an equidigital number, since it uses as much as digits as its factorization.

1173400522443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709856 (or 709847 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 1173400522443 in words is "one trillion, one hundred seventy-three billion, four hundred million, five hundred twenty-two thousand, four hundred forty-three".