30310203133121 has 4 divisors (see below), whose sum is σ = 30325899770544. Its totient is φ = 30294506495700.

The previous prime is 30310203133103. The next prime is 30310203133123. The reversal of 30310203133121 is 12133130201303.

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-30310203133121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30310203133123) 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, 7848315815 + ... + 7848319676.

It is an arithmetic number, because the mean of its divisors is an integer number (7581474942636).

Almost surely, 2^{30310203133121} is an apocalyptic number.

It is an amenable number.

30310203133121 is a deficient number, since it is larger than the sum of its proper divisors (15696637423).

30310203133121 is a wasteful number, since it uses less digits than its factorization.

30310203133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15696637422.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 30310203133121 its reverse (12133130201303), we get a palindrome (42443333334424).

The spelling of 30310203133121 in words is "thirty trillion, three hundred ten billion, two hundred three million, one hundred thirty-three thousand, one hundred twenty-one".