30312312030 has 384 divisors, whose sum is σ = 110425835520. Its totient is φ = 5560980480.

The previous prime is 30312312029. The next prime is 30312312067. The reversal of 30312312030 is 3021321303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30312311994 and 30312312012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2064756 + ... + 2079384.

It is an arithmetic number, because the mean of its divisors is an integer number (287567280).

Almost surely, 2^30312312030 is an apocalyptic number.

30312312030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30312312030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55212917760).

30312312030 is an abundant number, since it is smaller than the sum of its proper divisors (80113523490).

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

30312312030 is a wasteful number, since it uses less digits than its factorization.

30312312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14696 (or 14693 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30312312030 its reverse (3021321303), we get a palindrome (33333633333).

The spelling of 30312312030 in words is "thirty billion, three hundred twelve million, three hundred twelve thousand, thirty".