31001242011 has 8 divisors (see below), whose sum is σ = 41393957904. Its totient is φ = 20638010400.

The previous prime is 31001242003. The next prime is 31001242033. The reversal of 31001242011 is 11024210013.

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

It is not a de Polignac number, because 31001242011 - 2³ = 31001242003 is a prime.

It is a super-2 number, since 2×31001242011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31001242081) 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, 7368616 + ... + 7372821.

It is an arithmetic number, because the mean of its divisors is an integer number (5174244738).

Almost surely, 2^31001242011 is an apocalyptic number.

31001242011 is a deficient number, since it is larger than the sum of its proper divisors (10392715893).

31001242011 is a wasteful number, since it uses less digits than its factorization.

31001242011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14742141.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 31001242011 its reverse (11024210013), we get a palindrome (42025452024).

The spelling of 31001242011 in words is "thirty-one billion, one million, two hundred forty-two thousand, eleven".