131003032023220 has 36 divisors (see below), whose sum is σ = 320021692516260. Its totient is φ = 44915325264768.

The previous prime is 131003032023169. The next prime is 131003032023307. The reversal of 131003032023220 is 22320230300131.

It can be written as a sum of positive squares in 2 ways, for example, as 85143102199204 + 45859929824016 = 9227302^2 + 6771996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131003032023191 and 131003032023200.

It is a congruent number.

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, 66838280665 + ... + 66838282624.

It is an arithmetic number, because the mean of its divisors is an integer number (8889491458785).

Almost surely, 2^{131003032023220} is an apocalyptic number.

131003032023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131003032023220 is an abundant number, since it is smaller than the sum of its proper divisors (189018660493040).

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

131003032023220 is a wasteful number, since it uses less digits than its factorization.

131003032023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133676563312 (or 133676563303 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 131003032023220 its reverse (22320230300131), we get a palindrome (153323262323351).

The spelling of 131003032023220 in words is "one hundred thirty-one trillion, three billion, thirty-two million, twenty-three thousand, two hundred twenty".