31440342024102 has 64 divisors (see below), whose sum is σ = 68934787015680. Its totient is φ = 9480535411200.

The previous prime is 31440342024089. The next prime is 31440342024149. The reversal of 31440342024102 is 20142024304413.

It is a self number, because there is not a number n which added to its sum of digits gives 31440342024102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20736168 + ... + 22200660.

It is an arithmetic number, because the mean of its divisors is an integer number (1077106047120).

Almost surely, 2^{31440342024102} is an apocalyptic number.

31440342024102 is an abundant number, since it is smaller than the sum of its proper divisors (37494444991578).

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

31440342024102 is a wasteful number, since it uses less digits than its factorization.

31440342024102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466109.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31440342024102 its reverse (20142024304413), we get a palindrome (51582366328515).

The spelling of 31440342024102 in words is "thirty-one trillion, four hundred forty billion, three hundred forty-two million, twenty-four thousand, one hundred two".