72103246501 has 12 divisors (see below), whose sum is σ = 85174143840. Its totient is φ = 60506219280.

The previous prime is 72103246483. The next prime is 72103246513. The reversal of 72103246501 is 10564230127.

It is not a de Polignac number, because 72103246501 - 2⁹ = 72103245989 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 (72103246561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19391161 + ... + 19394878.

It is an arithmetic number, because the mean of its divisors is an integer number (7097845320).

Almost surely, 2^72103246501 is an apocalyptic number.

It is an amenable number.

72103246501 is a deficient number, since it is larger than the sum of its proper divisors (13070897339).

72103246501 is a wasteful number, since it uses less digits than its factorization.

72103246501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38786076 (or 38786063 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 72103246501 its reverse (10564230127), we get a palindrome (82667476628).

The spelling of 72103246501 in words is "seventy-two billion, one hundred three million, two hundred forty-six thousand, five hundred one".