72113103 has 12 divisors (see below), whose sum is σ = 104285688. Its totient is φ = 48018960.

The previous prime is 72113089. The next prime is 72113131. The reversal of 72113103 is 30131127.

It is not a de Polignac number, because 72113103 - 2⁶ = 72113039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72113183) 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, 4293 + ... + 12753.

It is an arithmetic number, because the mean of its divisors is an integer number (8690474).

Almost surely, 2^72113103 is an apocalyptic number.

72113103 is a deficient number, since it is larger than the sum of its proper divisors (32172585).

72113103 is a wasteful number, since it uses less digits than its factorization.

72113103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9414 (or 9411 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 72113103 is about 8491.9434171455. The cubic root of 72113103 is about 416.2344874234.

It can be divided in two parts, 721 and 13103, that added together give a cube (13824 = 24³).

The spelling of 72113103 in words is "seventy-two million, one hundred thirteen thousand, one hundred three".