15105342012 has 24 divisors (see below), whose sum is σ = 35278798800. Its totient is φ = 5030399616.

The previous prime is 15105342001. The next prime is 15105342017. The reversal of 15105342012 is 21024350151.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15105342017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575937 + ... + 601592.

It is an arithmetic number, because the mean of its divisors is an integer number (1469949950).

Almost surely, 2^15105342012 is an apocalyptic number.

15105342012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15105342012 is an abundant number, since it is smaller than the sum of its proper divisors (20173456788).

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

15105342012 is a wasteful number, since it uses less digits than its factorization.

15105342012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178605 (or 1178603 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15105342012 its reverse (21024350151), we get a palindrome (36129692163).

The spelling of 15105342012 in words is "fifteen billion, one hundred five million, three hundred forty-two thousand, twelve".