31344044311 has 2 divisors, whose sum is σ = 31344044312. Its totient is φ = 31344044310.

The previous prime is 31344044243. The next prime is 31344044327. The reversal of 31344044311 is 11344044313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31344044311 - 2⁷ = 31344044183 is a prime.

It is a super-2 number, since 2×31344044311² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31344044311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31344044341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672022155 + 15672022156.

It is an arithmetic number, because the mean of its divisors is an integer number (15672022156).

Almost surely, 2^31344044311 is an apocalyptic number.

31344044311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344044311 is an equidigital number, since it uses as much as digits as its factorization.

31344044311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31344044311 its reverse (11344044313), we get a palindrome (42688088624).

The spelling of 31344044311 in words is "thirty-one billion, three hundred forty-four million, forty-four thousand, three hundred eleven".