31231466343 has 192 divisors, whose sum is σ = 62971084800. Its totient is φ = 14411105280.

The previous prime is 31231466323. The next prime is 31231466381. The reversal of 31231466343 is 34366413213.

31231466343 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 14 + 6 + 634 + 3 = 666.

It is not a de Polignac number, because 31231466343 - 2¹⁴ = 31231449959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31231466298 and 31231466307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231466323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 21405348 + ... + 21406806.

It is an arithmetic number, because the mean of its divisors is an integer number (327974400).

Almost surely, 2^31231466343 is an apocalyptic number.

31231466343 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31231466343 is an abundant number, since it is smaller than the sum of its proper divisors (31739618457).

31231466343 is a wasteful number, since it uses less digits than its factorization.

31231466343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602 (or 1599 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

Adding to 31231466343 its reverse (34366413213), we get a palindrome (65597879556).

The spelling of 31231466343 in words is "thirty-one billion, two hundred thirty-one million, four hundred sixty-six thousand, three hundred forty-three".