233120332011 has 16 divisors (see below), whose sum is σ = 355253708288. Its totient is φ = 133203096000.

The previous prime is 233120332001. The next prime is 233120332069. The reversal of 233120332011 is 110233021332.

It is not a de Polignac number, because 233120332011 - 2¹⁸ = 233120069867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233120332001) 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, 11290 + ... + 682911.

It is an arithmetic number, because the mean of its divisors is an integer number (22203356768).

Almost surely, 2^233120332011 is an apocalyptic number.

233120332011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

233120332011 is a deficient number, since it is larger than the sum of its proper divisors (122133376277).

233120332011 is a wasteful number, since it uses less digits than its factorization.

233120332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710202.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 233120332011 its reverse (110233021332), we get a palindrome (343353353343).

The spelling of 233120332011 in words is "two hundred thirty-three billion, one hundred twenty million, three hundred thirty-two thousand, eleven".