30123033420 has 96 divisors (see below), whose sum is σ = 86382971136. Its totient is φ = 7840684800.

The previous prime is 30123033407. The next prime is 30123033433. The reversal of 30123033420 is 2433032103.

It is an interprime number because it is at equal distance from previous prime (30123033407) and next prime (30123033433).

It is a super-3 number, since 3×30123033420³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448047 + ... + 510873.

It is an arithmetic number, because the mean of its divisors is an integer number (899822616).

Almost surely, 2^30123033420 is an apocalyptic number.

30123033420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30123033420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43191485568).

30123033420 is an abundant number, since it is smaller than the sum of its proper divisors (56259937716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123033420 is a wasteful number, since it uses less digits than its factorization.

30123033420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63031 (or 63029 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30123033420 its reverse (2433032103), we get a palindrome (32556065523).

The spelling of 30123033420 in words is "thirty billion, one hundred twenty-three million, thirty-three thousand, four hundred twenty".