15102313321212 has 144 divisors (see below), whose sum is σ = 43576478330112. Its totient is φ = 4368870696960.

The previous prime is 15102313321171. The next prime is 15102313321247. The reversal of 15102313321212 is 21212331320151.

15102313321212 is a `hidden beast` number, since 1 + 5 + 1 + 0 + 2 + 313 + 321 + 21 + 2 = 666.

It is a super-3 number, since 3×15102313321212³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6477973 + ... + 8495219.

It is an arithmetic number, because the mean of its divisors is an integer number (302614432848).

Almost surely, 2^{15102313321212} is an apocalyptic number.

15102313321212 is a gapful number since it is divisible by the number (12) 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 15102313321212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21788239165056).

15102313321212 is an abundant number, since it is smaller than the sum of its proper divisors (28474165008900).

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

15102313321212 is a wasteful number, since it uses less digits than its factorization.

15102313321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018228 (or 2018223 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 15102313321212 its reverse (21212331320151), we get a palindrome (36314644641363).

The spelling of 15102313321212 in words is "fifteen trillion, one hundred two billion, three hundred thirteen million, three hundred twenty-one thousand, two hundred twelve".