31214131244311 has 4 divisors (see below), whose sum is σ = 32571267385392. Its totient is φ = 29856995103232.

The previous prime is 31214131244297. The next prime is 31214131244327. The reversal of 31214131244311 is 11344213141213.

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

It is a cyclic number.

It is not a de Polignac number, because 31214131244311 - 2⁷ = 31214131244183 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 (31214131244381) 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, 678568070506 + ... + 678568070551.

It is an arithmetic number, because the mean of its divisors is an integer number (8142816846348).

Almost surely, 2^{31214131244311} is an apocalyptic number.

31214131244311 is a deficient number, since it is larger than the sum of its proper divisors (1357136141081).

31214131244311 is a wasteful number, since it uses less digits than its factorization.

31214131244311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357136141080.

The product of its digits is 6912, while the sum is 31.

Adding to 31214131244311 its reverse (11344213141213), we get a palindrome (42558344385524).

The spelling of 31214131244311 in words is "thirty-one trillion, two hundred fourteen billion, one hundred thirty-one million, two hundred forty-four thousand, three hundred eleven".