30002755121 has 4 divisors (see below), whose sum is σ = 30067556352. Its totient is φ = 29937953892.

The previous prime is 30002755109. The next prime is 30002755129. The reversal of 30002755121 is 12155720003.

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 not a de Polignac number, because 30002755121 - 2²² = 29998560817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30002755129) 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, 32399921 + ... + 32400846.

It is an arithmetic number, because the mean of its divisors is an integer number (7516889088).

Almost surely, 2^30002755121 is an apocalyptic number.

It is an amenable number.

30002755121 is a deficient number, since it is larger than the sum of its proper divisors (64801231).

30002755121 is an equidigital number, since it uses as much as digits as its factorization.

30002755121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64801230.

The product of its (nonzero) digits is 2100, while the sum is 26.

The spelling of 30002755121 in words is "thirty billion, two million, seven hundred fifty-five thousand, one hundred twenty-one".