1201323321023 has 8 divisors (see below), whose sum is σ = 1372962686592. Its totient is φ = 1029689392536.

The previous prime is 1201323320969. The next prime is 1201323321073. The reversal of 1201323321023 is 3201233231021.

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

It is not a de Polignac number, because 1201323321023 - 2⁶ = 1201323320959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201323321023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201323321073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874265 + ... + 1779602.

It is an arithmetic number, because the mean of its divisors is an integer number (171620335824).

Almost surely, 2^{1201323321023} is an apocalyptic number.

1201323321023 is a deficient number, since it is larger than the sum of its proper divisors (171639365569).

1201323321023 is an equidigital number, since it uses as much as digits as its factorization.

1201323321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718541.

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

Adding to 1201323321023 its reverse (3201233231021), we get a palindrome (4402556552044).

The spelling of 1201323321023 in words is "one trillion, two hundred one billion, three hundred twenty-three million, three hundred twenty-one thousand, twenty-three".