201511252341 has 24 divisors (see below), whose sum is σ = 332692555520. Its totient is φ = 115135766496.

The previous prime is 201511252321. The next prime is 201511252351. The reversal of 201511252341 is 143252115102.

It is a happy number.

201511252341 is a `hidden beast` number, since 20 + 1 + 5 + 112 + 523 + 4 + 1 = 666.

It is not a de Polignac number, because 201511252341 - 2¹⁰ = 201511251317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201511252301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365871 + ... + 732723.

Almost surely, 2^201511252341 is an apocalyptic number.

201511252341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201511252341 is a deficient number, since it is larger than the sum of its proper divisors (131181303179).

201511252341 is a wasteful number, since it uses less digits than its factorization.

201511252341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375585 (or 375582 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 201511252341 its reverse (143252115102), we get a palindrome (344763367443).

The spelling of 201511252341 in words is "two hundred one billion, five hundred eleven million, two hundred fifty-two thousand, three hundred forty-one".