30220223123 has 4 divisors (see below), whose sum is σ = 30221522520. Its totient is φ = 30218923728.

The previous prime is 30220223101. The next prime is 30220223147. The reversal of 30220223123 is 32132202203.

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 30220223123 - 2¹² = 30220219027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30220223095 and 30220223104.

It is not an unprimeable number, because it can be changed into a prime (30220220123) 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, 614165 + ... + 661542.

It is an arithmetic number, because the mean of its divisors is an integer number (7555380630).

Almost surely, 2^30220223123 is an apocalyptic number.

30220223123 is a deficient number, since it is larger than the sum of its proper divisors (1299397).

30220223123 is a wasteful number, since it uses less digits than its factorization.

30220223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299396.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30220223123 its reverse (32132202203), we get a palindrome (62352425326).

The spelling of 30220223123 in words is "thirty billion, two hundred twenty million, two hundred twenty-three thousand, one hundred twenty-three".