201431011 has 8 divisors (see below), whose sum is σ = 216464400. Its totient is φ = 186751488.

The previous prime is 201430981. The next prime is 201431029. The reversal of 201431011 is 110134102.

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 201431011 - 2¹⁹ = 200906723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201430982 and 201431000.

It is not an unprimeable number, because it can be changed into a prime (201431311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87286 + ... + 89563.

It is an arithmetic number, because the mean of its divisors is an integer number (27058050).

Almost surely, 2^201431011 is an apocalyptic number.

201431011 is a deficient number, since it is larger than the sum of its proper divisors (15033389).

201431011 is a wasteful number, since it uses less digits than its factorization.

201431011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176933.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 201431011 is about 14192.6393246640. The cubic root of 201431011 is about 586.1950014402.

Adding to 201431011 its reverse (110134102), we get a palindrome (311565113).

The spelling of 201431011 in words is "two hundred one million, four hundred thirty-one thousand, eleven".