201312501 has 16 divisors (see below), whose sum is σ = 296116800. Its totient is φ = 120862080.

The previous prime is 201312499. The next prime is 201312563. The reversal of 201312501 is 105213102.

It is not a de Polignac number, because 201312501 - 2¹ = 201312499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61351 + ... + 64548.

It is an arithmetic number, because the mean of its divisors is an integer number (18507300).

Almost surely, 2^201312501 is an apocalyptic number.

It is an amenable number.

201312501 is a deficient number, since it is larger than the sum of its proper divisors (94804299).

201312501 is a wasteful number, since it uses less digits than its factorization.

201312501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125956.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 201312501 is about 14188.4636589026. The cubic root of 201312501 is about 586.0800181551.

Adding to 201312501 its reverse (105213102), we get a palindrome (306525603).

The spelling of 201312501 in words is "two hundred one million, three hundred twelve thousand, five hundred one".