131223233330 has 24 divisors (see below), whose sum is σ = 274765383468. Its totient is φ = 44990822688.

The previous prime is 131223233321. The next prime is 131223233467. The reversal of 131223233330 is 33332322131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118693341361 + 12529891969 = 344519^2 + 111937^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131223233330.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133900769 + ... + 133901748.

Almost surely, 2^131223233330 is an apocalyptic number.

131223233330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131223233330 is an abundant number, since it is smaller than the sum of its proper divisors (143542150138).

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

131223233330 is a wasteful number, since it uses less digits than its factorization.

131223233330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267802538 (or 267802531 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 131223233330 its reverse (33332322131), we get a palindrome (164555555461).

The spelling of 131223233330 in words is "one hundred thirty-one billion, two hundred twenty-three million, two hundred thirty-three thousand, three hundred thirty".