201125135115 has 12 divisors (see below), whose sum is σ = 348616900944. Its totient is φ = 107266738704.

The previous prime is 201125135069. The next prime is 201125135119. The reversal of 201125135115 is 511531521102.

It is a happy number.

201125135115 is a `hidden beast` number, since 20 + 1 + 12 + 513 + 5 + 115 = 666.

It is not a de Polignac number, because 201125135115 - 2⁹ = 201125134603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201125135119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2234723679 + ... + 2234723768.

It is an arithmetic number, because the mean of its divisors is an integer number (29051408412).

Almost surely, 2^201125135115 is an apocalyptic number.

201125135115 is a deficient number, since it is larger than the sum of its proper divisors (147491765829).

201125135115 is a wasteful number, since it uses less digits than its factorization.

201125135115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469447458 (or 4469447455 counting only the distinct ones).

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

Adding to 201125135115 its reverse (511531521102), we get a palindrome (712656656217).

The spelling of 201125135115 in words is "two hundred one billion, one hundred twenty-five million, one hundred thirty-five thousand, one hundred fifteen".