73045031331 has 8 divisors (see below), whose sum is σ = 97752761344. Its totient is φ = 48516994440.

The previous prime is 73045031237. The next prime is 73045031347. The reversal of 73045031331 is 13313054037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73045031331 - 2⁹ = 73045030819 is a prime.

It is a super-2 number, since 2×73045031331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73045031131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44922331 + ... + 44923956.

It is an arithmetic number, because the mean of its divisors is an integer number (12219095168).

Almost surely, 2^73045031331 is an apocalyptic number.

73045031331 is a deficient number, since it is larger than the sum of its proper divisors (24707730013).

73045031331 is a wasteful number, since it uses less digits than its factorization.

73045031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89846561.

The product of its (nonzero) digits is 11340, while the sum is 30.

Adding to 73045031331 its reverse (13313054037), we get a palindrome (86358085368).

The spelling of 73045031331 in words is "seventy-three billion, forty-five million, thirty-one thousand, three hundred thirty-one".