30212130223 has 16 divisors (see below), whose sum is σ = 34767757440. Its totient is φ = 25964215200.

The previous prime is 30212130173. The next prime is 30212130241. The reversal of 30212130223 is 32203121203.

It is a de Polignac number, because none of the positive numbers 2^k-30212130223 is a prime.

It is a super-2 number, since 2×30212130223² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 30212130223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212130323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57168 + ... + 252373.

It is an arithmetic number, because the mean of its divisors is an integer number (2172984840).

Almost surely, 2^30212130223 is an apocalyptic number.

30212130223 is a deficient number, since it is larger than the sum of its proper divisors (4555627217).

30212130223 is a wasteful number, since it uses less digits than its factorization.

30212130223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310038.

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

Adding to 30212130223 its reverse (32203121203), we get a palindrome (62415251426).

The spelling of 30212130223 in words is "thirty billion, two hundred twelve million, one hundred thirty thousand, two hundred twenty-three".