31003444144040 has 16 divisors (see below), whose sum is σ = 69757749324180. Its totient is φ = 12401377657600.

The previous prime is 31003444144039. The next prime is 31003444144067. The reversal of 31003444144040 is 4044144430013.

It can be written as a sum of positive squares in 2 ways, for example, as 30771183763684 + 232260380356 = 5547178^2 + 481934^2 .

It is a super-2 number, since 2×31003444144040² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003444143988 and 31003444144006.

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, 387543051761 + ... + 387543051840.

Almost surely, 2^{31003444144040} is an apocalyptic number.

It is an amenable number.

31003444144040 is an abundant number, since it is smaller than the sum of its proper divisors (38754305180140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31003444144040 is a wasteful number, since it uses less digits than its factorization.

31003444144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775086103612 (or 775086103608 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 31003444144040 its reverse (4044144430013), we get a palindrome (35047588574053).

The spelling of 31003444144040 in words is "thirty-one trillion, three billion, four hundred forty-four million, one hundred forty-four thousand, forty".