30102121230 has 64 divisors (see below), whose sum is σ = 76160770560. Its totient is φ = 7593416064.

The previous prime is 30102121229. The next prime is 30102121237. The reversal of 30102121230 is 3212120103.

It is a super-2 number, since 2×30102121230² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102121237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346887 + ... + 424893.

It is an arithmetic number, because the mean of its divisors is an integer number (1190012040).

Almost surely, 2^30102121230 is an apocalyptic number.

30102121230 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 30102121230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38080385280).

30102121230 is an abundant number, since it is smaller than the sum of its proper divisors (46058649330).

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

30102121230 is a wasteful number, since it uses less digits than its factorization.

30102121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78713.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30102121230 its reverse (3212120103), we get a palindrome (33314241333).

The spelling of 30102121230 in words is "thirty billion, one hundred two million, one hundred twenty-one thousand, two hundred thirty".