233123221331 has 32 divisors (see below), whose sum is σ = 313603788288. Its totient is φ = 167360048640.

The previous prime is 233123221291. The next prime is 233123221367. The reversal of 233123221331 is 133122321332.

It is a cyclic number.

It is not a de Polignac number, because 233123221331 - 2¹⁴ = 233123204947 is a prime.

It is a super-2 number, since 2×233123221331² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 233123221331.

It is not an unprimeable number, because it can be changed into a prime (233123221381) 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, 300875 + ... + 746171.

It is an arithmetic number, because the mean of its divisors is an integer number (9800118384).

Almost surely, 2^233123221331 is an apocalyptic number.

233123221331 is a deficient number, since it is larger than the sum of its proper divisors (80480566957).

233123221331 is a wasteful number, since it uses less digits than its factorization.

233123221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445851.

The product of its digits is 3888, while the sum is 26.

Adding to 233123221331 its reverse (133122321332), we get a palindrome (366245542663).

It can be divided in two parts, 233123 and 221331, that added together give a palindrome (454454).

The spelling of 233123221331 in words is "two hundred thirty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty-one".