72012103230 has 128 divisors (see below), whose sum is σ = 182373451776. Its totient is φ = 18162636800.

The previous prime is 72012103147. The next prime is 72012103297. The reversal of 72012103230 is 3230121027.

It is a junction number, because it is equal to n+sod(n) for n = 72012103197 and 72012103206.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 26561575 + ... + 26564285.

It is an arithmetic number, because the mean of its divisors is an integer number (1424792592).

Almost surely, 2^72012103230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72012103230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91186725888).

72012103230 is an abundant number, since it is smaller than the sum of its proper divisors (110361348546).

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

72012103230 is a wasteful number, since it uses less digits than its factorization.

72012103230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162.

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 72012103230 its reverse (3230121027), we get a palindrome (75242224257).

The spelling of 72012103230 in words is "seventy-two billion, twelve million, one hundred three thousand, two hundred thirty".