501231103272 has 80 divisors (see below), whose sum is σ = 1464950852640. Its totient is φ = 159812810784.

The previous prime is 501231103271. The next prime is 501231103279. The reversal of 501231103272 is 272301132105.

501231103272 is a `hidden beast` number, since 501 + 2 + 31 + 103 + 27 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (501231103271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16800418 + ... + 16830225.

It is an arithmetic number, because the mean of its divisors is an integer number (18311885658).

Almost surely, 2^501231103272 is an apocalyptic number.

It is an amenable number.

501231103272 is an abundant number, since it is smaller than the sum of its proper divisors (963719749368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501231103272 is a wasteful number, since it uses less digits than its factorization.

501231103272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33630684 (or 33630671 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

Adding to 501231103272 its reverse (272301132105), we get a palindrome (773532235377).

The spelling of 501231103272 in words is "five hundred one billion, two hundred thirty-one million, one hundred three thousand, two hundred seventy-two".