31042211343 has 64 divisors (see below), whose sum is σ = 51370744320. Its totient is φ = 16392499200.

The previous prime is 31042211341. The next prime is 31042211357. The reversal of 31042211343 is 34311224013.

It is a happy number.

It is a Cunningham number, because it is equal to 176188²-1.

It is not a de Polignac number, because 31042211343 - 2¹ = 31042211341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042211341) 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 63 ways as a sum of consecutive naturals, for example, 2283655 + ... + 2297207.

It is an arithmetic number, because the mean of its divisors is an integer number (802667880).

Almost surely, 2^31042211343 is an apocalyptic number.

31042211343 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31042211343 is a deficient number, since it is larger than the sum of its proper divisors (20328532977).

31042211343 is a wasteful number, since it uses less digits than its factorization.

31042211343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13880.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31042211343 its reverse (34311224013), we get a palindrome (65353435356).

The spelling of 31042211343 in words is "thirty-one billion, forty-two million, two hundred eleven thousand, three hundred forty-three".