31123413201 has 48 divisors (see below), whose sum is σ = 46263275520. Its totient is φ = 18579546720.

The previous prime is 31123413151. The next prime is 31123413227. The reversal of 31123413201 is 10231432113.

It is not a de Polignac number, because 31123413201 - 2⁹ = 31123412689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31123413241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1432860 + ... + 1454418.

It is an arithmetic number, because the mean of its divisors is an integer number (963818240).

Almost surely, 2^31123413201 is an apocalyptic number.

31123413201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31123413201 is a deficient number, since it is larger than the sum of its proper divisors (15139862319).

31123413201 is a wasteful number, since it uses less digits than its factorization.

31123413201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21674 (or 21655 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31123413201 its reverse (10231432113), we get a palindrome (41354845314).

The spelling of 31123413201 in words is "thirty-one billion, one hundred twenty-three million, four hundred thirteen thousand, two hundred one".