31323031010 has 8 divisors (see below), whose sum is σ = 56381455836. Its totient is φ = 12529212400.

The previous prime is 31323030979. The next prime is 31323031027. The reversal of 31323031010 is 1013032313.

It can be written as a sum of positive squares in 2 ways, for example, as 30311854609 + 1011176401 = 174103^2 + 31799^2 .

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

It is a super-2 number, since 2×31323031010² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31323031010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1566151541 + ... + 1566151560.

Almost surely, 2^31323031010 is an apocalyptic number.

31323031010 is a deficient number, since it is larger than the sum of its proper divisors (25058424826).

31323031010 is a wasteful number, since it uses less digits than its factorization.

31323031010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132303108.

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

Adding to 31323031010 its reverse (1013032313), we get a palindrome (32336063323).

It can be divided in two parts, 3132303 and 1010, that added together give a palindrome (3133313).

The spelling of 31323031010 in words is "thirty-one billion, three hundred twenty-three million, thirty-one thousand, ten".