30123232133 has 4 divisors (see below), whose sum is σ = 30937373580. Its totient is φ = 29309090688.

The previous prime is 30123232129. The next prime is 30123232193. The reversal of 30123232133 is 33123232103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17529230404 + 12594001729 = 132398^2 + 112223^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123232133 - 2² = 30123232129 is a prime.

It is a super-2 number, since 2×30123232133² (a number of 22 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 = 30123232099 and 30123232108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123232193) 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, 407070668 + ... + 407070741.

It is an arithmetic number, because the mean of its divisors is an integer number (7734343395).

Almost surely, 2^30123232133 is an apocalyptic number.

It is an amenable number.

30123232133 is a deficient number, since it is larger than the sum of its proper divisors (814141447).

30123232133 is an equidigital number, since it uses as much as digits as its factorization.

30123232133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814141446.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30123232133 its reverse (33123232103), we get a palindrome (63246464236).

The spelling of 30123232133 in words is "thirty billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred thirty-three".