31234314340440 has 48 divisors (see below), whose sum is σ = 101511521607600. Its totient is φ = 8329150490688.

The previous prime is 31234314340423. The next prime is 31234314340451. The reversal of 31234314340440 is 4404341343213.

31234314340440 is a `hidden beast` number, since 3 + 1 + 2 + 34 + 3 + 143 + 40 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 31234314340395 and 31234314340404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43380991780 + ... + 43380992499.

It is an arithmetic number, because the mean of its divisors is an integer number (2114823366825).

Almost surely, 2^{31234314340440} is an apocalyptic number.

31234314340440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31234314340440 is an abundant number, since it is smaller than the sum of its proper divisors (70277207267160).

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

31234314340440 is a wasteful number, since it uses less digits than its factorization.

31234314340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86761984296 (or 86761984289 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 31234314340440 its reverse (4404341343213), we get a palindrome (35638655683653).

The spelling of 31234314340440 in words is "thirty-one trillion, two hundred thirty-four billion, three hundred fourteen million, three hundred forty thousand, four hundred forty".