30312223123 has 24 divisors (see below), whose sum is σ = 37529364768. Its totient is φ = 23972412672.

The previous prime is 30312223093. The next prime is 30312223127. The reversal of 30312223123 is 32132221303.

It is not a de Polignac number, because 30312223123 - 2⁵ = 30312223091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30312223094 and 30312223103.

It is not an unprimeable number, because it can be changed into a prime (30312223127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3489061 + ... + 3497737.

It is an arithmetic number, because the mean of its divisors is an integer number (1563723532).

Almost surely, 2^30312223123 is an apocalyptic number.

30312223123 is a deficient number, since it is larger than the sum of its proper divisors (7217141645).

30312223123 is a wasteful number, since it uses less digits than its factorization.

30312223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11663 (or 11650 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30312223123 its reverse (32132221303), we get a palindrome (62444444426).

The spelling of 30312223123 in words is "thirty billion, three hundred twelve million, two hundred twenty-three thousand, one hundred twenty-three".