131021231224430 has 32 divisors (see below), whose sum is σ = 248486958610560. Its totient is φ = 49602909837600.

The previous prime is 131021231224363. The next prime is 131021231224463. The reversal of 131021231224430 is 34422132120131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131021231224393 and 131021231224402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327861884 + ... + 328261263.

It is an arithmetic number, because the mean of its divisors is an integer number (7765217456580).

Almost surely, 2^{131021231224430} is an apocalyptic number.

131021231224430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131021231224430 is a deficient number, since it is larger than the sum of its proper divisors (117465727386130).

131021231224430 is a wasteful number, since it uses less digits than its factorization.

131021231224430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656124224.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131021231224430 its reverse (34422132120131), we get a palindrome (165443363344561).

The spelling of 131021231224430 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred thirty-one million, two hundred twenty-four thousand, four hundred thirty".