73121311232323 has 4 divisors (see below), whose sum is σ = 73804687972920. Its totient is φ = 72437934491728.

The previous prime is 73121311232287. The next prime is 73121311232369. The reversal of 73121311232323 is 32323211312137.

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 73121311232323 - 2¹³ = 73121311224131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73121311232393) 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, 341688370138 + ... + 341688370351.

It is an arithmetic number, because the mean of its divisors is an integer number (18451171993230).

Almost surely, 2^{73121311232323} is an apocalyptic number.

73121311232323 is a deficient number, since it is larger than the sum of its proper divisors (683376740597).

73121311232323 is a wasteful number, since it uses less digits than its factorization.

73121311232323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683376740596.

The product of its digits is 27216, while the sum is 34.

The spelling of 73121311232323 in words is "seventy-three trillion, one hundred twenty-one billion, three hundred eleven million, two hundred thirty-two thousand, three hundred twenty-three".