131223112301000 has 32 divisors (see below), whose sum is σ = 307062082786680. Its totient is φ = 52489244920000.

The previous prime is 131223112300979. The next prime is 131223112301027. The reversal of 131223112301000 is 103211322131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4426639265764 + 126796473035236 = 2103958^2 + 11260394^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 65611555151 + ... + 65611557150.

Almost surely, 2^{131223112301000} is an apocalyptic number.

131223112301000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131223112301000 is an abundant number, since it is smaller than the sum of its proper divisors (175838970485680).

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

131223112301000 is a wasteful number, since it uses less digits than its factorization.

131223112301000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131223112322 (or 131223112308 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131223112301000 its reverse (103211322131), we get a palindrome (131326323623131).

The spelling of 131223112301000 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, one hundred twelve million, three hundred one thousand".