31211112040343 has 16 divisors (see below), whose sum is σ = 33059880756000. Its totient is φ = 29363769701376.

The previous prime is 31211112040307. The next prime is 31211112040363. The reversal of 31211112040343 is 34304021111213.

It is a cyclic number.

It is not a de Polignac number, because 31211112040343 - 2¹⁰ = 31211112039319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31211112040363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766893971 + ... + 766934667.

It is an arithmetic number, because the mean of its divisors is an integer number (2066242547250).

Almost surely, 2^{31211112040343} is an apocalyptic number.

31211112040343 is a deficient number, since it is larger than the sum of its proper divisors (1848768715657).

31211112040343 is a wasteful number, since it uses less digits than its factorization.

31211112040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57106.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 31211112040343 its reverse (34304021111213), we get a palindrome (65515133151556).

The spelling of 31211112040343 in words is "thirty-one trillion, two hundred eleven billion, one hundred twelve million, forty thousand, three hundred forty-three".