31440141243004 has 72 divisors (see below), whose sum is σ = 61039786359888. Its totient is φ = 14154934510080.

The previous prime is 31440141242977. The next prime is 31440141243041. The reversal of 31440141243004 is 40034214104413.

It is a super-2 number, since 2×31440141243004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208265719 + ... + 208416625.

It is an arithmetic number, because the mean of its divisors is an integer number (847774810554).

Almost surely, 2^{31440141243004} is an apocalyptic number.

It is an amenable number.

31440141243004 is a deficient number, since it is larger than the sum of its proper divisors (29599645116884).

31440141243004 is a wasteful number, since it uses less digits than its factorization.

31440141243004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158495 (or 158480 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 31440141243004 its reverse (40034214104413), we get a palindrome (71474355347417).

The spelling of 31440141243004 in words is "thirty-one trillion, four hundred forty billion, one hundred forty-one million, two hundred forty-three thousand, four".