31201131001 has 8 divisors (see below), whose sum is σ = 32279961600. Its totient is φ = 30122495760.

The previous prime is 31201130981. The next prime is 31201131023. The reversal of 31201131001 is 10013110213.

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 31201131001 - 2¹¹ = 31201128953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31201131701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324616 + ... + 409606.

It is an arithmetic number, because the mean of its divisors is an integer number (4034995200).

Almost surely, 2^31201131001 is an apocalyptic number.

It is an amenable number.

31201131001 is a deficient number, since it is larger than the sum of its proper divisors (1078830599).

31201131001 is a wasteful number, since it uses less digits than its factorization.

31201131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97679.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 31201131001 its reverse (10013110213), we get a palindrome (41214241214).

The spelling of 31201131001 in words is "thirty-one billion, two hundred one million, one hundred thirty-one thousand, one".