31122340011144 has 64 divisors (see below), whose sum is σ = 86968614902400. Its totient is φ = 10311992885952.

The previous prime is 31122340011097. The next prime is 31122340011151. The reversal of 31122340011144 is 44111004322113.

It is a happy number.

31122340011144 is a `hidden beast` number, since 3 + 11 + 223 + 400 + 11 + 14 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431355867 + ... + 431428010.

It is an arithmetic number, because the mean of its divisors is an integer number (1358884607850).

Almost surely, 2^{31122340011144} is an apocalyptic number.

It is an amenable number.

31122340011144 is an abundant number, since it is smaller than the sum of its proper divisors (55846274891256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31122340011144 is a wasteful number, since it uses less digits than its factorization.

31122340011144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862784059 (or 862784049 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 31122340011144 its reverse (44111004322113), we get a palindrome (75233344333257).

The spelling of 31122340011144 in words is "thirty-one trillion, one hundred twenty-two billion, three hundred forty million, eleven thousand, one hundred forty-four".