1203123021323 has 8 divisors (see below), whose sum is σ = 1211143734528. Its totient is φ = 1195112027304.

The previous prime is 1203123021251. The next prime is 1203123021383. The reversal of 1203123021323 is 3231203213021.

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

It is a cyclic number.

It is not a de Polignac number, because 1203123021323 - 2³⁶ = 1134403544587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203123021383) 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 7 ways as a sum of consecutive naturals, for example, 2181311 + ... + 2676632.

It is an arithmetic number, because the mean of its divisors is an integer number (151392966816).

Almost surely, 2^{1203123021323} is an apocalyptic number.

1203123021323 is a deficient number, since it is larger than the sum of its proper divisors (8020713205).

1203123021323 is a wasteful number, since it uses less digits than its factorization.

1203123021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859593.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1203123021323 its reverse (3231203213021), we get a palindrome (4434326234344).

The spelling of 1203123021323 in words is "one trillion, two hundred three billion, one hundred twenty-three million, twenty-one thousand, three hundred twenty-three".