31243301140224 has 72 divisors (see below), whose sum is σ = 83153568719872. Its totient is φ = 10414330444800.

The previous prime is 31243301140201. The next prime is 31243301140229. The reversal of 31243301140224 is 42204110334213.

It is a super-2 number, since 2×31243301140224² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31243301140191 and 31243301140200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31243301140229) by changing a digit.

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, 154382847 + ... + 154585089.

Almost surely, 2^{31243301140224} is an apocalyptic number.

It is an amenable number.

31243301140224 is an abundant number, since it is smaller than the sum of its proper divisors (51910267579648).

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

31243301140224 is a wasteful number, since it uses less digits than its factorization.

31243301140224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403413 (or 403399 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31243301140224 its reverse (42204110334213), we get a palindrome (73447411474437).

The spelling of 31243301140224 in words is "thirty-one trillion, two hundred forty-three billion, three hundred one million, one hundred forty thousand, two hundred twenty-four".