30321220122131 has 4 divisors (see below), whose sum is σ = 30321231213000. Its totient is φ = 30321209031264.

The previous prime is 30321220122113. The next prime is 30321220122143. The reversal of 30321220122131 is 13122102212303.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30321220122131 - 2³⁴ = 30304040252947 is a prime.

It is a super-2 number, since 2×30321220122131² (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 = 30321220122097 and 30321220122106.

It is not an unprimeable number, because it can be changed into a prime (30321220142131) 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, 1788395 + ... + 7990043.

It is an arithmetic number, because the mean of its divisors is an integer number (7580307803250).

Almost surely, 2^{30321220122131} is an apocalyptic number.

30321220122131 is a deficient number, since it is larger than the sum of its proper divisors (11090869).

30321220122131 is an equidigital number, since it uses as much as digits as its factorization.

30321220122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090868.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30321220122131 its reverse (13122102212303), we get a palindrome (43443322334434).

The spelling of 30321220122131 in words is "thirty trillion, three hundred twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred thirty-one".