1232011030321 has 4 divisors (see below), whose sum is σ = 1232066726500. Its totient is φ = 1231955334144.

The previous prime is 1232011030319. The next prime is 1232011030339. The reversal of 1232011030321 is 1230301102321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1006632962721 + 225378067600 = 1003311^2 + 474740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232011030321 - 2¹ = 1232011030319 is a prime.

It is a super-2 number, since 2×1232011030321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232011040321) 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, 27814896 + ... + 27859153.

It is an arithmetic number, because the mean of its divisors is an integer number (308016681625).

Almost surely, 2^{1232011030321} is an apocalyptic number.

It is an amenable number.

1232011030321 is a deficient number, since it is larger than the sum of its proper divisors (55696179).

1232011030321 is an equidigital number, since it uses as much as digits as its factorization.

1232011030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55696178.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1232011030321 its reverse (1230301102321), we get a palindrome (2462312132642).

The spelling of 1232011030321 in words is "one trillion, two hundred thirty-two billion, eleven million, thirty thousand, three hundred twenty-one".