30121131323 has 8 divisors (see below), whose sum is σ = 30430737936. Its totient is φ = 29811748000.

The previous prime is 30121131317. The next prime is 30121131427. The reversal of 30121131323 is 32313112103.

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 30121131323 - 2³⁰ = 29047389499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30121131295 and 30121131304.

It is not an unprimeable number, because it can be changed into a prime (30121131023) 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, 222440 + ... + 331242.

It is an arithmetic number, because the mean of its divisors is an integer number (3803842242).

Almost surely, 2^30121131323 is an apocalyptic number.

30121131323 is a deficient number, since it is larger than the sum of its proper divisors (309606613).

30121131323 is a wasteful number, since it uses less digits than its factorization.

30121131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111645.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30121131323 its reverse (32313112103), we get a palindrome (62434243426).

The spelling of 30121131323 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-three".