1213030315165 has 16 divisors (see below), whose sum is σ = 1459022906880. Its totient is φ = 968168335680.

The previous prime is 1213030315141. The next prime is 1213030315169. The reversal of 1213030315165 is 5615130303121.

It is not a de Polignac number, because 1213030315165 - 2³⁷ = 1075591361693 is a prime.

It is a super-4 number, since 4×1213030315165⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213030315169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5440020 + ... + 5658610.

It is an arithmetic number, because the mean of its divisors is an integer number (91188931680).

Almost surely, 2^{1213030315165} is an apocalyptic number.

It is an amenable number.

1213030315165 is a deficient number, since it is larger than the sum of its proper divisors (245992591715).

1213030315165 is a wasteful number, since it uses less digits than its factorization.

1213030315165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221172.

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 1213030315165 its reverse (5615130303121), we get a palindrome (6828160618286).

It can be divided in two parts, 121303031 and 5165, that added together give a square (121308196 = 11014²).

The spelling of 1213030315165 in words is "one trillion, two hundred thirteen billion, thirty million, three hundred fifteen thousand, one hundred sixty-five".