131223104430 has 64 divisors (see below), whose sum is σ = 352851545088. Its totient is φ = 30951884160.

The previous prime is 131223104417. The next prime is 131223104489. The reversal of 131223104430 is 34401322131.

It is a happy number.

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 131223104430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5361382 + ... + 5385801.

It is an arithmetic number, because the mean of its divisors is an integer number (5513305392).

Almost surely, 2^131223104430 is an apocalyptic number.

131223104430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131223104430 is an abundant number, since it is smaller than the sum of its proper divisors (221628440658).

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

131223104430 is a wasteful number, since it uses less digits than its factorization.

131223104430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10747241.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131223104430 its reverse (34401322131), we get a palindrome (165624426561).

The spelling of 131223104430 in words is "one hundred thirty-one billion, two hundred twenty-three million, one hundred four thousand, four hundred thirty".