31144030400001 has 16 divisors (see below), whose sum is σ = 42590000654208. Its totient is φ = 20231607177600.

The previous prime is 31144030399931. The next prime is 31144030400059. The reversal of 31144030400001 is 10000403044113.

It is a de Polignac number, because none of the positive numbers 2^k-31144030400001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31144030400081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154103341 + ... + 154305306.

It is an arithmetic number, because the mean of its divisors is an integer number (2661875040888).

Almost surely, 2^{31144030400001} is an apocalyptic number.

It is an amenable number.

31144030400001 is a deficient number, since it is larger than the sum of its proper divisors (11445970254207).

31144030400001 is a wasteful number, since it uses less digits than its factorization.

31144030400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308409512.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31144030400001 its reverse (10000403044113), we get a palindrome (41144433444114).

The spelling of 31144030400001 in words is "thirty-one trillion, one hundred forty-four billion, thirty million, four hundred thousand, one".