30542560121 has 4 divisors (see below), whose sum is σ = 30677109072. Its totient is φ = 30408011172.

The previous prime is 30542560099. The next prime is 30542560123. The reversal of 30542560121 is 12106524503.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12106524503 = 83 ⋅145861741.

It is a cyclic number.

It is not a de Polignac number, because 30542560121 - 2¹⁴ = 30542543737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30542560123) 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, 67274135 + ... + 67274588.

It is an arithmetic number, because the mean of its divisors is an integer number (7669277268).

Almost surely, 2^30542560121 is an apocalyptic number.

It is an amenable number.

30542560121 is a deficient number, since it is larger than the sum of its proper divisors (134548951).

30542560121 is a wasteful number, since it uses less digits than its factorization.

30542560121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134548950.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 30542560121 in words is "thirty billion, five hundred forty-two million, five hundred sixty thousand, one hundred twenty-one".