131020350 has 24 divisors (see below), whose sum is σ = 324930840. Its totient is φ = 34938720.

The previous prime is 131020301. The next prime is 131020369. The reversal of 131020350 is 53020131.

It is a happy number.

It is a super-2 number, since 2×131020350² = 34332664228245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436585 + ... + 436884.

It is an arithmetic number, because the mean of its divisors is an integer number (13538785).

Almost surely, 2^131020350 is an apocalyptic number.

131020350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131020350 is an abundant number, since it is smaller than the sum of its proper divisors (193910490).

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

131020350 is a wasteful number, since it uses less digits than its factorization.

131020350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873484 (or 873479 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 131020350 is about 11446.4121016151. The cubic root of 131020350 is about 507.9016048295.

Adding to 131020350 its reverse (53020131), we get a palindrome (184040481).

The spelling of 131020350 in words is "one hundred thirty-one million, twenty thousand, three hundred fifty".