131220130 has 32 divisors (see below), whose sum is σ = 246732480. Its totient is φ = 50195520.

The previous prime is 131220101. The next prime is 131220143. The reversal of 131220130 is 31022131.

It is a self number, because there is not a number n which added to its sum of digits gives 131220130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18825 + ... + 24835.

It is an arithmetic number, because the mean of its divisors is an integer number (7710390).

Almost surely, 2^131220130 is an apocalyptic number.

131220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131220130 is a deficient number, since it is larger than the sum of its proper divisors (115512350).

131220130 is a wasteful number, since it uses less digits than its factorization.

131220130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131220130 is about 11455.1355295343. The cubic root of 131220130 is about 508.1596234073.

Adding to 131220130 its reverse (31022131), we get a palindrome (162242261).

The spelling of 131220130 in words is "one hundred thirty-one million, two hundred twenty thousand, one hundred thirty".