31144232001 has 24 divisors (see below), whose sum is σ = 42296536800. Its totient is φ = 20384279104.

The previous prime is 31144231939. The next prime is 31144232083. The reversal of 31144232001 is 10023244113.

It is not a de Polignac number, because 31144232001 - 2¹¹ = 31144229953 is a prime.

It is a super-2 number, since 2×31144232001² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31144232401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10953286 + ... + 10956128.

It is an arithmetic number, because the mean of its divisors is an integer number (1762355700).

Almost surely, 2^31144232001 is an apocalyptic number.

It is an amenable number.

31144232001 is a deficient number, since it is larger than the sum of its proper divisors (11152304799).

31144232001 is a wasteful number, since it uses less digits than its factorization.

31144232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4013 (or 3954 counting only the distinct ones).

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

Adding to 31144232001 its reverse (10023244113), we get a palindrome (41167476114).

The spelling of 31144232001 in words is "thirty-one billion, one hundred forty-four million, two hundred thirty-two thousand, one".