201423131 has 8 divisors (see below), whose sum is σ = 247905504. Its totient is φ = 159367680.

The previous prime is 201423127. The next prime is 201423169. The reversal of 201423131 is 131324102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201423131 - 2² = 201423127 is a prime.

It is a super-2 number, since 2×201423131² = 81142555403686322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201423181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106630 + ... + 1106811.

It is an arithmetic number, because the mean of its divisors is an integer number (30988188).

Almost surely, 2^201423131 is an apocalyptic number.

201423131 is a deficient number, since it is larger than the sum of its proper divisors (46482373).

201423131 is a wasteful number, since it uses less digits than its factorization.

201423131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213461.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 201423131 is about 14192.3617132597. The cubic root of 201423131 is about 586.1873573394.

Adding to 201423131 its reverse (131324102), we get a palindrome (332747233).

The spelling of 201423131 in words is "two hundred one million, four hundred twenty-three thousand, one hundred thirty-one".