201251252131 has 4 divisors (see below), whose sum is σ = 201292915264. Its totient is φ = 201209589000.

The previous prime is 201251252119. The next prime is 201251252171. The reversal of 201251252131 is 131252152102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201251252131 - 2¹⁵ = 201251219363 is a prime.

It is a super-3 number, since 3×201251252131³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201251252096 and 201251252105.

It is not an unprimeable number, because it can be changed into a prime (201251252101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20824320 + ... + 20833981.

It is an arithmetic number, because the mean of its divisors is an integer number (50323228816).

Almost surely, 2^201251252131 is an apocalyptic number.

201251252131 is a deficient number, since it is larger than the sum of its proper divisors (41663133).

201251252131 is an equidigital number, since it uses as much as digits as its factorization.

201251252131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41663132.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 201251252131 in words is "two hundred one billion, two hundred fifty-one million, two hundred fifty-two thousand, one hundred thirty-one".