31201234102443 has 16 divisors (see below), whose sum is σ = 41704828577280. Its totient is φ = 20749283116704.

The previous prime is 31201234102433. The next prime is 31201234102447. The reversal of 31201234102443 is 34420143210213.

It is not a de Polignac number, because 31201234102443 - 2⁸ = 31201234102187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31201234102443.

It is not an unprimeable number, because it can be changed into a prime (31201234102447) 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, 4087488 + ... + 8894381.

It is an arithmetic number, because the mean of its divisors is an integer number (2606551786080).

Almost surely, 2^{31201234102443} is an apocalyptic number.

31201234102443 is a deficient number, since it is larger than the sum of its proper divisors (10503594474837).

31201234102443 is a wasteful number, since it uses less digits than its factorization.

31201234102443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12983858.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31201234102443 its reverse (34420143210213), we get a palindrome (65621377312656).

The spelling of 31201234102443 in words is "thirty-one trillion, two hundred one billion, two hundred thirty-four million, one hundred two thousand, four hundred forty-three".