131013723 has 8 divisors (see below), whose sum is σ = 174749200. Its totient is φ = 87310368.

The previous prime is 131013709. The next prime is 131013767. The reversal of 131013723 is 327310131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131013723 - 2⁵ = 131013691 is a prime.

It is a super-2 number, since 2×131013723² = 34329191228641458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131013723.

It is not an unprimeable number, because it can be changed into a prime (131013523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4113 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (21843650).

Almost surely, 2^131013723 is an apocalyptic number.

131013723 is a deficient number, since it is larger than the sum of its proper divisors (43735477).

131013723 is a wasteful number, since it uses less digits than its factorization.

131013723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16061.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 131013723 is about 11446.1226185988. The cubic root of 131013723 is about 507.8930414761.

Adding to 131013723 its reverse (327310131), we get a palindrome (458323854).

The spelling of 131013723 in words is "one hundred thirty-one million, thirteen thousand, seven hundred twenty-three".