131351123501 has 8 divisors (see below), whose sum is σ = 141552564384. Its totient is φ = 121163612400.

The previous prime is 131351123467. The next prime is 131351123537. The reversal of 131351123501 is 105321153131.

It is a happy number.

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 131351123501 - 2¹⁸ = 131350861357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131351123201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3462851 + ... + 3500576.

It is an arithmetic number, because the mean of its divisors is an integer number (17694070548).

Almost surely, 2^131351123501 is an apocalyptic number.

It is an amenable number.

131351123501 is a deficient number, since it is larger than the sum of its proper divisors (10201440883).

131351123501 is a wasteful number, since it uses less digits than its factorization.

131351123501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964891.

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 131351123501 its reverse (105321153131), we get a palindrome (236672276632).

The spelling of 131351123501 in words is "one hundred thirty-one billion, three hundred fifty-one million, one hundred twenty-three thousand, five hundred one".