723025091021 has 8 divisors (see below), whose sum is σ = 765636406080. Its totient is φ = 680869512288.

The previous prime is 723025091011. The next prime is 723025091083. The reversal of 723025091021 is 120190520327.

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

It is a cyclic number.

It is not a de Polignac number, because 723025091021 - 2²⁶ = 722957982157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723025091011) 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, 113930816 + ... + 113937161.

It is an arithmetic number, because the mean of its divisors is an integer number (95704550760).

Almost surely, 2^723025091021 is an apocalyptic number.

It is an amenable number.

723025091021 is a deficient number, since it is larger than the sum of its proper divisors (42611315059).

723025091021 is a wasteful number, since it uses less digits than its factorization.

723025091021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227868163.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 723025091021 in words is "seven hundred twenty-three billion, twenty-five million, ninety-one thousand, twenty-one".