1231441340343 has 16 divisors (see below), whose sum is σ = 1713337103616. Its totient is φ = 785254377600.

The previous prime is 1231441340329. The next prime is 1231441340399. The reversal of 1231441340343 is 3430431441321.

It is not a de Polignac number, because 1231441340343 - 2¹³ = 1231441332151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231441340303) 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, 6279096 + ... + 6472242.

It is an arithmetic number, because the mean of its divisors is an integer number (107083568976).

Almost surely, 2^{1231441340343} is an apocalyptic number.

1231441340343 is a deficient number, since it is larger than the sum of its proper divisors (481895763273).

1231441340343 is a wasteful number, since it uses less digits than its factorization.

1231441340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285574.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 1231441340343 its reverse (3430431441321), we get a palindrome (4661872781664).

The spelling of 1231441340343 in words is "one trillion, two hundred thirty-one billion, four hundred forty-one million, three hundred forty thousand, three hundred forty-three".