31040243115448 has 32 divisors (see below), whose sum is σ = 67930015334400. Its totient is φ = 13019919603552.

The previous prime is 31040243115439. The next prime is 31040243115461. The reversal of 31040243115448 is 84451134204013.

It is a super-2 number, since 2×31040243115448² (a number of 28 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 31040243115448.

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 7 ways as a sum of consecutive naturals, for example, 5896700088 + ... + 5896705351.

It is an arithmetic number, because the mean of its divisors is an integer number (2122812979200).

Almost surely, 2^{31040243115448} is an apocalyptic number.

It is an amenable number.

31040243115448 is an abundant number, since it is smaller than the sum of its proper divisors (36889772218952).

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

31040243115448 is a wasteful number, since it uses less digits than its factorization.

31040243115448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11793405499 (or 11793405495 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 31040243115448 in words is "thirty-one trillion, forty billion, two hundred forty-three million, one hundred fifteen thousand, four hundred forty-eight".