131030242220 has 12 divisors (see below), whose sum is σ = 275163508704. Its totient is φ = 52412096880.

The previous prime is 131030242193. The next prime is 131030242237. The reversal of 131030242220 is 22242030131.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6551512111 = 131030242220 / (1 + 3 + 1 + 0 + 3 + 0 + 2 + 4 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 131030242192 and 131030242201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275756036 + ... + 3275756075.

It is an arithmetic number, because the mean of its divisors is an integer number (22930292392).

Almost surely, 2^131030242220 is an apocalyptic number.

131030242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131030242220 is an abundant number, since it is smaller than the sum of its proper divisors (144133266484).

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

131030242220 is a wasteful number, since it uses less digits than its factorization.

131030242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551512120 (or 6551512118 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131030242220 its reverse (22242030131), we get a palindrome (153272272351).

The spelling of 131030242220 in words is "one hundred thirty-one billion, thirty million, two hundred forty-two thousand, two hundred twenty".