131122030 has 24 divisors (see below), whose sum is σ = 255574872. Its totient is φ = 48413664.

The previous prime is 131121997. The next prime is 131122031. The reversal of 131122030 is 30221131.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 131122030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131122031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37104 + ... + 40483.

It is an arithmetic number, because the mean of its divisors is an integer number (10648953).

Almost surely, 2^131122030 is an apocalyptic number.

131122030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131122030 is a deficient number, since it is larger than the sum of its proper divisors (124452842).

131122030 is a wasteful number, since it uses less digits than its factorization.

131122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77620 (or 77607 counting only the distinct ones).

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

The square root of 131122030 is about 11450.8528066690. The cubic root of 131122030 is about 508.0329586775.

Adding to 131122030 its reverse (30221131), we get a palindrome (161343161).

The spelling of 131122030 in words is "one hundred thirty-one million, one hundred twenty-two thousand, thirty".