131311430 has 32 divisors (see below), whose sum is σ = 240537600. Its totient is φ = 51603552.

The previous prime is 131311423. The next prime is 131311457. The reversal of 131311430 is 34113131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131311399 and 131311408.

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, 283379 + ... + 283841.

It is an arithmetic number, because the mean of its divisors is an integer number (7516800).

Almost surely, 2^131311430 is an apocalyptic number.

131311430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131311430 is a deficient number, since it is larger than the sum of its proper divisors (109226170).

131311430 is a wasteful number, since it uses less digits than its factorization.

131311430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 131311430 is about 11459.1199487570. The cubic root of 131311430 is about 508.2774514103.

Adding to 131311430 its reverse (34113131), we get a palindrome (165424561).

The spelling of 131311430 in words is "one hundred thirty-one million, three hundred eleven thousand, four hundred thirty".