501131253325123 has 8 divisors (see below), whose sum is σ = 501356541016800. Its totient is φ = 500906005592640.

The previous prime is 501131253325093. The next prime is 501131253325139. The reversal of 501131253325123 is 321523352131105.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501131253325123 is a prime.

It is a super-2 number, since 2×501131253325123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511131253325123) 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, 15112161 + ... + 35080477.

It is an arithmetic number, because the mean of its divisors is an integer number (62669567627100).

Almost surely, 2^{501131253325123} is an apocalyptic number.

501131253325123 is a deficient number, since it is larger than the sum of its proper divisors (225287691677).

501131253325123 is a wasteful number, since it uses less digits than its factorization.

501131253325123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19979597.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 501131253325123 in words is "five hundred one trillion, one hundred thirty-one billion, two hundred fifty-three million, three hundred twenty-five thousand, one hundred twenty-three".