1023131201321 has 8 divisors (see below), whose sum is σ = 1083586087584. Its totient is φ = 962706392640.

The previous prime is 1023131201299. The next prime is 1023131201327. The reversal of 1023131201321 is 1231021313201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023131201321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023131201293 and 1023131201302.

It is not an unprimeable number, because it can be changed into a prime (1023131201327) 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, 7449335 + ... + 7585436.

It is an arithmetic number, because the mean of its divisors is an integer number (135448260948).

Almost surely, 2^{1023131201321} is an apocalyptic number.

It is an amenable number.

1023131201321 is a deficient number, since it is larger than the sum of its proper divisors (60454886263).

1023131201321 is a wasteful number, since it uses less digits than its factorization.

1023131201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15038791.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1023131201321 its reverse (1231021313201), we get a palindrome (2254152514522).

The spelling of 1023131201321 in words is "one trillion, twenty-three billion, one hundred thirty-one million, two hundred one thousand, three hundred twenty-one".