30032212123 has 4 divisors (see below), whose sum is σ = 30394046088. Its totient is φ = 29670378160.

The previous prime is 30032212103. The next prime is 30032212159. The reversal of 30032212123 is 32121223003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32121223003 = 241 ⋅133283083.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30032212123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30032212123.

It is not an unprimeable number, because it can be changed into a prime (30032212103) 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, 180916858 + ... + 180917023.

It is an arithmetic number, because the mean of its divisors is an integer number (7598511522).

Almost surely, 2^30032212123 is an apocalyptic number.

30032212123 is a deficient number, since it is larger than the sum of its proper divisors (361833965).

30032212123 is an equidigital number, since it uses as much as digits as its factorization.

30032212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361833964.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30032212123 its reverse (32121223003), we get a palindrome (62153435126).

It can be divided in two parts, 300322 and 12123, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 30032212123 in words is "thirty billion, thirty-two million, two hundred twelve thousand, one hundred twenty-three".