31206000623 has 16 divisors (see below), whose sum is σ = 37025156160. Its totient is φ = 25733702400.

The previous prime is 31206000619. The next prime is 31206000629. The reversal of 31206000623 is 32600060213.

It is not a de Polignac number, because 31206000623 - 2² = 31206000619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31206000629) 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 15 ways as a sum of consecutive naturals, for example, 216488 + ... + 330573.

It is an arithmetic number, because the mean of its divisors is an integer number (2314072260).

Almost surely, 2^31206000623 is an apocalyptic number.

31206000623 is a deficient number, since it is larger than the sum of its proper divisors (5819155537).

31206000623 is a wasteful number, since it uses less digits than its factorization.

31206000623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547378.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31206000623 its reverse (32600060213), we get a palindrome (63806060836).

The spelling of 31206000623 in words is "thirty-one billion, two hundred six million, six hundred twenty-three", and thus it is an aban number.