31124131441 has 8 divisors (see below), whose sum is σ = 33519674664. Its totient is φ = 28728785280.

The previous prime is 31124131433. The next prime is 31124131453. The reversal of 31124131441 is 14413142113.

It can be written as a sum of positive squares in 4 ways, for example, as 1850290225 + 29273841216 = 43015^2 + 171096^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31124131441 - 2³ = 31124131433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31124131411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 539031 + ... + 593971.

It is an arithmetic number, because the mean of its divisors is an integer number (4189959333).

Almost surely, 2^31124131441 is an apocalyptic number.

It is an amenable number.

31124131441 is a deficient number, since it is larger than the sum of its proper divisors (2395543223).

31124131441 is a wasteful number, since it uses less digits than its factorization.

31124131441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98531.

The product of its digits is 1152, while the sum is 25.

Adding to 31124131441 its reverse (14413142113), we get a palindrome (45537273554).

The spelling of 31124131441 in words is "thirty-one billion, one hundred twenty-four million, one hundred thirty-one thousand, four hundred forty-one".