31145414234441 has 4 divisors (see below), whose sum is σ = 33541215329412. Its totient is φ = 28749613139472.

The previous prime is 31145414234399. The next prime is 31145414234443. The reversal of 31145414234441 is 14443241454113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6622902250000 + 24522511984441 = 2573500^2 + 4952021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31145414234441 is a prime.

It is a super-2 number, since 2×31145414234441² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31145414234443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197900547466 + ... + 1197900547491.

It is an arithmetic number, because the mean of its divisors is an integer number (8385303832353).

Almost surely, 2^{31145414234441} is an apocalyptic number.

It is an amenable number.

31145414234441 is a deficient number, since it is larger than the sum of its proper divisors (2395801094971).

31145414234441 is a wasteful number, since it uses less digits than its factorization.

31145414234441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395801094970.

The product of its digits is 368640, while the sum is 41.

Adding to 31145414234441 its reverse (14443241454113), we get a palindrome (45588655688554).

The spelling of 31145414234441 in words is "thirty-one trillion, one hundred forty-five billion, four hundred fourteen million, two hundred thirty-four thousand, four hundred forty-one".