31344111011 has 4 divisors (see below), whose sum is σ = 31390003512. Its totient is φ = 31298218512.

The previous prime is 31344110981. The next prime is 31344111023. The reversal of 31344111011 is 11011144313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11011144313 = 13 ⋅847011101.

It is a cyclic number.

It is not a de Polignac number, because 31344111011 - 2¹⁴ = 31344094627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31344111031) 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, 22945226 + ... + 22946591.

It is an arithmetic number, because the mean of its divisors is an integer number (7847500878).

Almost surely, 2^31344111011 is an apocalyptic number.

31344111011 is a deficient number, since it is larger than the sum of its proper divisors (45892501).

31344111011 is an equidigital number, since it uses as much as digits as its factorization.

31344111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45892500.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 31344111011 its reverse (11011144313), we get a palindrome (42355255324).

The spelling of 31344111011 in words is "thirty-one billion, three hundred forty-four million, one hundred eleven thousand, eleven".