131222230320 has 40 divisors (see below), whose sum is σ = 406788914736. Its totient is φ = 34992594688.

The previous prime is 131222230319. The next prime is 131222230421. The reversal of 131222230320 is 23032222131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273379407 + ... + 273379886.

Almost surely, 2^131222230320 is an apocalyptic number.

131222230320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222230320 is an abundant number, since it is smaller than the sum of its proper divisors (275566684416).

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

131222230320 is a wasteful number, since it uses less digits than its factorization.

131222230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546759309 (or 546759303 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 131222230320 its reverse (23032222131), we get a palindrome (154254452451).

The spelling of 131222230320 in words is "one hundred thirty-one billion, two hundred twenty-two million, two hundred thirty thousand, three hundred twenty".