30312500321 has 8 divisors (see below), whose sum is σ = 31325627904. Its totient is φ = 29301579360.

The previous prime is 30312500311. The next prime is 30312500327. The reversal of 30312500321 is 12300521303.

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 30312500321 - 2³⁴ = 13132631137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30312500293 and 30312500302.

It is not an unprimeable number, because it can be changed into a prime (30312500327) 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, 523700 + ... + 578693.

It is an arithmetic number, because the mean of its divisors is an integer number (3915703488).

Almost surely, 2^30312500321 is an apocalyptic number.

30312500321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30312500321 is a deficient number, since it is larger than the sum of its proper divisors (1013127583).

30312500321 is a wasteful number, since it uses less digits than its factorization.

30312500321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103311.

The product of its (nonzero) digits is 540, while the sum is 20.

The spelling of 30312500321 in words is "thirty billion, three hundred twelve million, five hundred thousand, three hundred twenty-one".