501231355141 has 16 divisors (see below), whose sum is σ = 575863372800. Its totient is φ = 431467484400.

The previous prime is 501231355127. The next prime is 501231355147. The reversal of 501231355141 is 141553132105.

It is a cyclic number.

It is not a de Polignac number, because 501231355141 - 2⁷ = 501231355013 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 (501231355147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175981 + ... + 1016578.

It is an arithmetic number, because the mean of its divisors is an integer number (35991460800).

Almost surely, 2^501231355141 is an apocalyptic number.

It is an amenable number.

501231355141 is a deficient number, since it is larger than the sum of its proper divisors (74632017659).

501231355141 is a wasteful number, since it uses less digits than its factorization.

501231355141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194600.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 501231355141 its reverse (141553132105), we get a palindrome (642784487246).

The spelling of 501231355141 in words is "five hundred one billion, two hundred thirty-one million, three hundred fifty-five thousand, one hundred forty-one".