15115212134042 has 16 divisors (see below), whose sum is σ = 23313351156480. Its totient is φ = 7344581995728.

The previous prime is 15115212134017. The next prime is 15115212134101. The reversal of 15115212134042 is 24043121251151.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121665938 + ... + 121790109.

It is an arithmetic number, because the mean of its divisors is an integer number (1457084447280).

Almost surely, 2^{15115212134042} is an apocalyptic number.

15115212134042 is a deficient number, since it is larger than the sum of its proper divisors (8198139022438).

15115212134042 is a wasteful number, since it uses less digits than its factorization.

15115212134042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243456925.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 15115212134042 its reverse (24043121251151), we get a palindrome (39158333385193).

The spelling of 15115212134042 in words is "fifteen trillion, one hundred fifteen billion, two hundred twelve million, one hundred thirty-four thousand, forty-two".