87320233071073 has 4 divisors (see below), whose sum is σ = 87321288268480. Its totient is φ = 87319177873668.

The previous prime is 87320233071067. The next prime is 87320233071107. The reversal of 87320233071073 is 37017033202378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87320233071073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87320233071373) 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, 527474565 + ... + 527640082.

It is an arithmetic number, because the mean of its divisors is an integer number (21830322067120).

Almost surely, 2^{87320233071073} is an apocalyptic number.

It is an amenable number.

87320233071073 is a deficient number, since it is larger than the sum of its proper divisors (1055197407).

87320233071073 is a wasteful number, since it uses less digits than its factorization.

87320233071073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055197406.

The product of its (nonzero) digits is 889056, while the sum is 46.

The spelling of 87320233071073 in words is "eighty-seven trillion, three hundred twenty billion, two hundred thirty-three million, seventy-one thousand, seventy-three".