31224241140 has 48 divisors (see below), whose sum is σ = 87499104000. Its totient is φ = 8319680640.

The previous prime is 31224241127. The next prime is 31224241151. The reversal of 31224241140 is 4114242213.

It is a self number, because there is not a number n which added to its sum of digits gives 31224241140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137515 + ... + 285234.

It is an arithmetic number, because the mean of its divisors is an integer number (1822898000).

Almost surely, 2^31224241140 is an apocalyptic number.

31224241140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31224241140 is an abundant number, since it is smaller than the sum of its proper divisors (56274862860).

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

31224241140 is a wasteful number, since it uses less digits than its factorization.

31224241140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423992 (or 423990 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31224241140 its reverse (4114242213), we get a palindrome (35338483353).

The spelling of 31224241140 in words is "thirty-one billion, two hundred twenty-four million, two hundred forty-one thousand, one hundred forty".