3131243153105 has 8 divisors (see below), whose sum is σ = 3757601661864. Its totient is φ = 2504921270400.

The previous prime is 3131243153083. The next prime is 3131243153141. The reversal of 3131243153105 is 5013513421313.

It can be written as a sum of positive squares in 4 ways, for example, as 2387235124624 + 744008028481 = 1545068^2 + 862559^2 .

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

It is not a de Polignac number, because 3131243153105 - 2¹² = 3131243149009 is a prime.

It is a super-2 number, since 2×3131243153105² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 8968076 + ... + 9310685.

It is an arithmetic number, because the mean of its divisors is an integer number (469700207733).

Almost surely, 2^{3131243153105} is an apocalyptic number.

It is an amenable number.

3131243153105 is a deficient number, since it is larger than the sum of its proper divisors (626358508759).

3131243153105 is a wasteful number, since it uses less digits than its factorization.

3131243153105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313027.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 3131243153105 its reverse (5013513421313), we get a palindrome (8144756574418).

The spelling of 3131243153105 in words is "three trillion, one hundred thirty-one billion, two hundred forty-three million, one hundred fifty-three thousand, one hundred five".