131033301220 has 12 divisors (see below), whose sum is σ = 275169932604. Its totient is φ = 52413320480.

The previous prime is 131033301211. The next prime is 131033301239. The reversal of 131033301220 is 22103330131.

It can be written as a sum of positive squares in 2 ways, for example, as 58104138304 + 72929162916 = 241048^2 + 270054^2 .

It is a super-2 number, since 2×131033301220² (a number of 23 digits) contains 22 as substring.

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, 3275832511 + ... + 3275832550.

It is an arithmetic number, because the mean of its divisors is an integer number (22930827717).

Almost surely, 2^131033301220 is an apocalyptic number.

131033301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131033301220 is an abundant number, since it is smaller than the sum of its proper divisors (144136631384).

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

131033301220 is a wasteful number, since it uses less digits than its factorization.

131033301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551665070 (or 6551665068 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131033301220 its reverse (22103330131), we get a palindrome (153136631351).

The spelling of 131033301220 in words is "one hundred thirty-one billion, thirty-three million, three hundred one thousand, two hundred twenty".