131240030 has 32 divisors (see below), whose sum is σ = 251264160. Its totient is φ = 49213440.

The previous prime is 131240003. The next prime is 131240041. The reversal of 131240030 is 30042131.

It is a junction number, because it is equal to n+sod(n) for n = 131239987 and 131240014.

It is a congruent number.

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, 14870 + ... + 21990.

It is an arithmetic number, because the mean of its divisors is an integer number (7852005).

Almost surely, 2^131240030 is an apocalyptic number.

131240030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131240030 is a deficient number, since it is larger than the sum of its proper divisors (120024130).

131240030 is a wasteful number, since it uses less digits than its factorization.

131240030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7244.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 131240030 is about 11456.0041026529. The cubic root of 131240030 is about 508.1853101810.

Adding to 131240030 its reverse (30042131), we get a palindrome (161282161).

The spelling of 131240030 in words is "one hundred thirty-one million, two hundred forty thousand, thirty".