30202320123 has 8 divisors (see below), whose sum is σ = 44744178000. Its totient is φ = 20134880064.

The previous prime is 30202320103. The next prime is 30202320133. The reversal of 30202320123 is 32102320203.

It is a happy number.

It is not a de Polignac number, because 30202320123 - 2¹⁴ = 30202303739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30202320096 and 30202320105.

It is not an unprimeable number, because it can be changed into a prime (30202320103) 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, 559302198 + ... + 559302251.

It is an arithmetic number, because the mean of its divisors is an integer number (5593022250).

Almost surely, 2^30202320123 is an apocalyptic number.

30202320123 is a deficient number, since it is larger than the sum of its proper divisors (14541857877).

30202320123 is a wasteful number, since it uses less digits than its factorization.

30202320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118604458 (or 1118604452 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30202320123 its reverse (32102320203), we get a palindrome (62304640326).

The spelling of 30202320123 in words is "thirty billion, two hundred two million, three hundred twenty thousand, one hundred twenty-three".