31444342113 has 16 divisors (see below), whose sum is σ = 43090196480. Its totient is φ = 20388612816.

The previous prime is 31444342099. The next prime is 31444342121. The reversal of 31444342113 is 31124344413.

It is not a de Polignac number, because 31444342113 - 2⁵ = 31444342081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31444342183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974245 + ... + 1006002.

It is an arithmetic number, because the mean of its divisors is an integer number (2693137280).

Almost surely, 2^31444342113 is an apocalyptic number.

It is an amenable number.

31444342113 is a deficient number, since it is larger than the sum of its proper divisors (11645854367).

31444342113 is a wasteful number, since it uses less digits than its factorization.

31444342113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980396.

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

Adding to 31444342113 its reverse (31124344413), we get a palindrome (62568686526).

The spelling of 31444342113 in words is "thirty-one billion, four hundred forty-four million, three hundred forty-two thousand, one hundred thirteen".