31144134442204 has 24 divisors (see below), whose sum is σ = 62290054632960. Its totient is φ = 13347103529136.

The previous prime is 31144134442193. The next prime is 31144134442207. The reversal of 31144134442204 is 40224443144113.

It is a super-2 number, since 2×31144134442204² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31144134442207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14948992 + ... + 16904455.

It is an arithmetic number, because the mean of its divisors is an integer number (2595418943040).

Almost surely, 2^{31144134442204} is an apocalyptic number.

It is an amenable number.

31144134442204 is an abundant number, since it is smaller than the sum of its proper divisors (31145920190756).

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

31144134442204 is a wasteful number, since it uses less digits than its factorization.

31144134442204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31888377 (or 31888375 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 31144134442204 its reverse (40224443144113), we get a palindrome (71368577586317).

The spelling of 31144134442204 in words is "thirty-one trillion, one hundred forty-four billion, one hundred thirty-four million, four hundred forty-two thousand, two hundred four".