131123015 has 8 divisors (see below), whose sum is σ = 159339840. Its totient is φ = 103570272.

The previous prime is 131122969. The next prime is 131123029. The reversal of 131123015 is 510321131.

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

It is a cyclic number.

It is not a de Polignac number, because 131123015 - 2¹² = 131118919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131122984 and 131123002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165584 + ... + 166373.

It is an arithmetic number, because the mean of its divisors is an integer number (19917480).

Almost surely, 2^131123015 is an apocalyptic number.

131123015 is a deficient number, since it is larger than the sum of its proper divisors (28216825).

131123015 is an equidigital number, since it uses as much as digits as its factorization.

131123015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332041.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 131123015 is about 11450.8958164853. The cubic root of 131123015 is about 508.0342308035.

Adding to 131123015 its reverse (510321131), we get a palindrome (641444146).

The spelling of 131123015 in words is "one hundred thirty-one million, one hundred twenty-three thousand, fifteen".