1232021323231 has 32 divisors (see below), whose sum is σ = 1321891135488. Its totient is φ = 1144216273920.

The previous prime is 1232021323229. The next prime is 1232021323243. The reversal of 1232021323231 is 1323231202321.

It is a cyclic number.

It is not a de Polignac number, because 1232021323231 - 2¹ = 1232021323229 is a prime.

It is a super-2 number, since 2×1232021323231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232021323196 and 1232021323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232021323271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242473611 + ... + 242478691.

It is an arithmetic number, because the mean of its divisors is an integer number (41309097984).

Almost surely, 2^{1232021323231} is an apocalyptic number.

1232021323231 is a deficient number, since it is larger than the sum of its proper divisors (89869812257).

1232021323231 is a wasteful number, since it uses less digits than its factorization.

1232021323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1232021323231 its reverse (1323231202321), we get a palindrome (2555252525552).

The spelling of 1232021323231 in words is "one trillion, two hundred thirty-two billion, twenty-one million, three hundred twenty-three thousand, two hundred thirty-one".