30120323202131 has 4 divisors (see below), whose sum is σ = 31091946531264. Its totient is φ = 29148699873000.

The previous prime is 30120323202077. The next prime is 30120323202181. The reversal of 30120323202131 is 13120232302103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30120323202131 - 2¹⁰ = 30120323201107 is a prime.

It is a super-2 number, since 2×30120323202131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30120323202097 and 30120323202106.

It is not an unprimeable number, because it can be changed into a prime (30120323202181) 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, 485811664520 + ... + 485811664581.

It is an arithmetic number, because the mean of its divisors is an integer number (7772986632816).

Almost surely, 2^{30120323202131} is an apocalyptic number.

30120323202131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30120323202131 is a deficient number, since it is larger than the sum of its proper divisors (971623329133).

30120323202131 is an equidigital number, since it uses as much as digits as its factorization.

30120323202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971623329132.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30120323202131 its reverse (13120232302103), we get a palindrome (43240555504234).

The spelling of 30120323202131 in words is "thirty trillion, one hundred twenty billion, three hundred twenty-three million, two hundred two thousand, one hundred thirty-one".