233131022132420 has 12 divisors (see below), whose sum is σ = 489575146478124. Its totient is φ = 93252408852960.

The previous prime is 233131022132389. The next prime is 233131022132443. The reversal of 233131022132420 is 24231220131332.

It can be written as a sum of positive squares in 2 ways, for example, as 66491890913536 + 166639131218884 = 8154256^2 + 12908878^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5828275553291 + ... + 5828275553330.

It is an arithmetic number, because the mean of its divisors is an integer number (40797928873177).

Almost surely, 2^{233131022132420} is an apocalyptic number.

233131022132420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233131022132420 is an abundant number, since it is smaller than the sum of its proper divisors (256444124345704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233131022132420 is a wasteful number, since it uses less digits than its factorization.

233131022132420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656551106630 (or 11656551106628 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 233131022132420 its reverse (24231220131332), we get a palindrome (257362242263752).

The spelling of 233131022132420 in words is "two hundred thirty-three trillion, one hundred thirty-one billion, twenty-two million, one hundred thirty-two thousand, four hundred twenty".