72331320103 has 4 divisors (see below), whose sum is σ = 82664365840. Its totient is φ = 61998274368.

The previous prime is 72331320067. The next prime is 72331320107. The reversal of 72331320103 is 30102313327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72331320103 - 2¹³ = 72331311911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72331320107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5166522858 + ... + 5166522871.

It is an arithmetic number, because the mean of its divisors is an integer number (20666091460).

Almost surely, 2^72331320103 is an apocalyptic number.

72331320103 is a deficient number, since it is larger than the sum of its proper divisors (10333045737).

72331320103 is a wasteful number, since it uses less digits than its factorization.

72331320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10333045736.

The product of its (nonzero) digits is 2268, while the sum is 25.

The spelling of 72331320103 in words is "seventy-two billion, three hundred thirty-one million, three hundred twenty thousand, one hundred three".