1302321101231 has 4 divisors (see below), whose sum is σ = 1303418255832. Its totient is φ = 1301223946632.

The previous prime is 1302321101227. The next prime is 1302321101233. The reversal of 1302321101231 is 1321011232031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1302321101231 - 2² = 1302321101227 is a prime.

It is a super-4 number, since 4×1302321101231⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302321101233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548575520 + ... + 548577893.

It is an arithmetic number, because the mean of its divisors is an integer number (325854563958).

Almost surely, 2^{1302321101231} is an apocalyptic number.

1302321101231 is a deficient number, since it is larger than the sum of its proper divisors (1097154601).

1302321101231 is a wasteful number, since it uses less digits than its factorization.

1302321101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097154600.

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

Adding to 1302321101231 its reverse (1321011232031), we get a palindrome (2623332333262).

The spelling of 1302321101231 in words is "one trillion, three hundred two billion, three hundred twenty-one million, one hundred one thousand, two hundred thirty-one".