31123041 has 8 divisors (see below), whose sum is σ = 42117024. Its totient is φ = 20438880.

The previous prime is 31123021. The next prime is 31123067. The reversal of 31123041 is 14032113.

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

It is not a de Polignac number, because 31123041 - 2⁵ = 31123009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31123041.

It is not an unprimeable number, because it can be changed into a prime (31123021) 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, 77220 + ... + 77621.

It is an arithmetic number, because the mean of its divisors is an integer number (5264628).

Almost surely, 2^31123041 is an apocalyptic number.

It is an amenable number.

31123041 is a deficient number, since it is larger than the sum of its proper divisors (10993983).

31123041 is a wasteful number, since it uses less digits than its factorization.

31123041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154911.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31123041 is about 5578.8028285646. The cubic root of 31123041 is about 314.5531280015.

Adding to 31123041 its reverse (14032113), we get a palindrome (45155154).

The spelling of 31123041 in words is "thirty-one million, one hundred twenty-three thousand, forty-one".