131023330220 has 48 divisors (see below), whose sum is σ = 282278878560. Its totient is φ = 51068560896.

The previous prime is 131023330211. The next prime is 131023330241. The reversal of 131023330220 is 22033320131.

It is a super-2 number, since 2×131023330220² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 131023330192 and 131023330201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419435 + ... + 661794.

It is an arithmetic number, because the mean of its divisors is an integer number (5880809970).

Almost surely, 2^131023330220 is an apocalyptic number.

131023330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131023330220 is an abundant number, since it is smaller than the sum of its proper divisors (151255548340).

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

131023330220 is a wasteful number, since it uses less digits than its factorization.

131023330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081394 (or 1081392 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131023330220 its reverse (22033320131), we get a palindrome (153056650351).

The spelling of 131023330220 in words is "one hundred thirty-one billion, twenty-three million, three hundred thirty thousand, two hundred twenty".