31123224401 has 8 divisors (see below), whose sum is σ = 31323849120. Its totient is φ = 30922718112.

The previous prime is 31123224389. The next prime is 31123224403. The reversal of 31123224401 is 10442232113.

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 31123224401 - 2⁶ = 31123224337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31123224403) 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, 531770 + ... + 587388.

It is an arithmetic number, because the mean of its divisors is an integer number (3915481140).

Almost surely, 2^31123224401 is an apocalyptic number.

It is an amenable number.

31123224401 is a deficient number, since it is larger than the sum of its proper divisors (200624719).

31123224401 is a wasteful number, since it uses less digits than its factorization.

31123224401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59215.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31123224401 its reverse (10442232113), we get a palindrome (41565456514).

The spelling of 31123224401 in words is "thirty-one billion, one hundred twenty-three million, two hundred twenty-four thousand, four hundred one".