31240041221100 has 144 divisors (see below), whose sum is σ = 90477504881568. Its totient is φ = 8322419189760.

The previous prime is 31240041221089. The next prime is 31240041221143. The reversal of 31240041221100 is 112214004213.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1337490622 + ... + 1337513978.

It is an arithmetic number, because the mean of its divisors is an integer number (628316006122).

Almost surely, 2^{31240041221100} is an apocalyptic number.

31240041221100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31240041221100 is an abundant number, since it is smaller than the sum of its proper divisors (59237463660468).

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

31240041221100 is a wasteful number, since it uses less digits than its factorization.

31240041221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27604 (or 27597 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 31240041221100 its reverse (112214004213), we get a palindrome (31352255225313).

The spelling of 31240041221100 in words is "thirty-one trillion, two hundred forty billion, forty-one million, two hundred twenty-one thousand, one hundred".