202115113155 has 24 divisors (see below), whose sum is σ = 350571137280. Its totient is φ = 107721411840.

The previous prime is 202115113121. The next prime is 202115113183. The reversal of 202115113155 is 551311511202.

It is a happy number.

It is not a de Polignac number, because 202115113155 - 2⁶ = 202115113091 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1460470 + ... + 1592859.

It is an arithmetic number, because the mean of its divisors is an integer number (14607130720).

Almost surely, 2^202115113155 is an apocalyptic number.

202115113155 is a deficient number, since it is larger than the sum of its proper divisors (148456024125).

202115113155 is a wasteful number, since it uses less digits than its factorization.

202115113155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054811 (or 3054808 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 202115113155 its reverse (551311511202), we get a palindrome (753426624357).

The spelling of 202115113155 in words is "two hundred two billion, one hundred fifteen million, one hundred thirteen thousand, one hundred fifty-five".