1323012000155 has 8 divisors (see below), whose sum is σ = 1587892914384. Its totient is φ = 1058223924000.

The previous prime is 1323012000067. The next prime is 1323012000173. The reversal of 1323012000155 is 5510002103231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323012000155 - 2¹⁶ = 1323011934619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323012000155.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23178161 + ... + 23235170.

It is an arithmetic number, because the mean of its divisors is an integer number (198486614298).

Almost surely, 2^{1323012000155} is an apocalyptic number.

1323012000155 is a deficient number, since it is larger than the sum of its proper divisors (264880914229).

1323012000155 is an equidigital number, since it uses as much as digits as its factorization.

1323012000155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46419037.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 1323012000155 its reverse (5510002103231), we get a palindrome (6833014103386).

The spelling of 1323012000155 in words is "one trillion, three hundred twenty-three billion, twelve million, one hundred fifty-five", and thus it is an aban number.