31434411343143 has 4 divisors (see below), whose sum is σ = 41912548457528. Its totient is φ = 20956274228760.

The previous prime is 31434411343117. The next prime is 31434411343163. The reversal of 31434411343143 is 34134311443413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31434411343143 - 2³⁶ = 31365691866407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434411343103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5239068557188 + ... + 5239068557193.

It is an arithmetic number, because the mean of its divisors is an integer number (10478137114382).

Almost surely, 2^{31434411343143} is an apocalyptic number.

31434411343143 is a deficient number, since it is larger than the sum of its proper divisors (10478137114385).

31434411343143 is a wasteful number, since it uses less digits than its factorization.

31434411343143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478137114384.

The product of its digits is 248832, while the sum is 39.

Adding to 31434411343143 its reverse (34134311443413), we get a palindrome (65568722786556).

The spelling of 31434411343143 in words is "thirty-one trillion, four hundred thirty-four billion, four hundred eleven million, three hundred forty-three thousand, one hundred forty-three".