31440202110272 has 56 divisors (see below), whose sum is σ = 66597759656640. Its totient is φ = 14682970552320.

The previous prime is 31440202110271. The next prime is 31440202110277. The reversal of 31440202110272 is 27201120204413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440202110271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 181994153 + ... + 182166824.

Almost surely, 2^{31440202110272} is an apocalyptic number.

31440202110272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31440202110272 is an abundant number, since it is smaller than the sum of its proper divisors (35157557546368).

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

31440202110272 is a wasteful number, since it uses less digits than its factorization.

31440202110272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364161079 (or 364161069 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 31440202110272 its reverse (27201120204413), we get a palindrome (58641322314685).

The spelling of 31440202110272 in words is "thirty-one trillion, four hundred forty billion, two hundred two million, one hundred ten thousand, two hundred seventy-two".