31123303010 has 48 divisors (see below), whose sum is σ = 60057783720. Its totient is φ = 11609395200.

The previous prime is 31123302997. The next prime is 31123303021. The reversal of 31123303010 is 1030332113.

It can be written as a sum of positive squares in 12 ways, for example, as 18087829081 + 13035473929 = 134491^2 + 114173^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 31123303010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265610 + ... + 364410.

Almost surely, 2^31123303010 is an apocalyptic number.

31123303010 is a deficient number, since it is larger than the sum of its proper divisors (28934480710).

31123303010 is a wasteful number, since it uses less digits than its factorization.

31123303010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98951 (or 98934 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31123303010 its reverse (1030332113), we get a palindrome (32153635123).

The spelling of 31123303010 in words is "thirty-one billion, one hundred twenty-three million, three hundred three thousand, ten".