31000231241 has 16 divisors (see below), whose sum is σ = 36416919168. Its totient is φ = 25834992000.

The previous prime is 31000231237. The next prime is 31000231247. The reversal of 31000231241 is 14213200013.

It is a cyclic number.

It is not a de Polignac number, because 31000231241 - 2² = 31000231237 is a prime.

It is a super-2 number, since 2×31000231241² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31000231247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100235 + ... + 268416.

It is an arithmetic number, because the mean of its divisors is an integer number (2276057448).

Almost surely, 2^31000231241 is an apocalyptic number.

It is an amenable number.

31000231241 is a deficient number, since it is larger than the sum of its proper divisors (5416687927).

31000231241 is a wasteful number, since it uses less digits than its factorization.

31000231241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368992.

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

Adding to 31000231241 its reverse (14213200013), we get a palindrome (45213431254).

The spelling of 31000231241 in words is "thirty-one billion, two hundred thirty-one thousand, two hundred forty-one".