1215150353105 has 8 divisors (see below), whose sum is σ = 1570348148712. Its totient is φ = 897341799168.

The previous prime is 1215150353099. The next prime is 1215150353147. The reversal of 1215150353105 is 5013530515121.

It can be written as a sum of positive squares in 4 ways, for example, as 31843688704 + 1183306664401 = 178448^2 + 1087799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1215150353105 - 2⁴ = 1215150353089 is a prime.

It is a Duffinian number.

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, 9347310344 + ... + 9347310473.

It is an arithmetic number, because the mean of its divisors is an integer number (196293518589).

Almost surely, 2^{1215150353105} is an apocalyptic number.

It is an amenable number.

1215150353105 is a deficient number, since it is larger than the sum of its proper divisors (355197795607).

1215150353105 is a wasteful number, since it uses less digits than its factorization.

1215150353105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18694620835.

The product of its (nonzero) digits is 11250, while the sum is 32.

Adding to 1215150353105 its reverse (5013530515121), we get a palindrome (6228680868226).

The spelling of 1215150353105 in words is "one trillion, two hundred fifteen billion, one hundred fifty million, three hundred fifty-three thousand, one hundred five".