1321231112301 has 16 divisors (see below), whose sum is σ = 1764096840000. Its totient is φ = 879593733888.

The previous prime is 1321231112263. The next prime is 1321231112329. The reversal of 1321231112301 is 1032111321231.

It is not a de Polignac number, because 1321231112301 - 2⁶ = 1321231112237 is a prime.

It is a super-2 number, since 2×1321231112301² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321231112401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7975330 + ... + 8139308.

It is an arithmetic number, because the mean of its divisors is an integer number (110256052500).

Almost surely, 2^{1321231112301} is an apocalyptic number.

It is an amenable number.

1321231112301 is a deficient number, since it is larger than the sum of its proper divisors (442865727699).

1321231112301 is a wasteful number, since it uses less digits than its factorization.

1321231112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167708.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1321231112301 its reverse (1032111321231), we get a palindrome (2353342433532).

The spelling of 1321231112301 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-one million, one hundred twelve thousand, three hundred one".