31233140242444 has 48 divisors (see below), whose sum is σ = 63745220044800. Its totient is φ = 13384766856720.

The previous prime is 31233140242429. The next prime is 31233140242471. The reversal of 31233140242444 is 44424204133213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20740239 + ... + 22195129.

It is an arithmetic number, because the mean of its divisors is an integer number (1328025417600).

Almost surely, 2^{31233140242444} is an apocalyptic number.

It is an amenable number.

31233140242444 is an abundant number, since it is smaller than the sum of its proper divisors (32512079802356).

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

31233140242444 is a wasteful number, since it uses less digits than its factorization.

31233140242444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470563 (or 1470547 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 31233140242444 its reverse (44424204133213), we get a palindrome (75657344375657).

The spelling of 31233140242444 in words is "thirty-one trillion, two hundred thirty-three billion, one hundred forty million, two hundred forty-two thousand, four hundred forty-four".