155033320131 has 12 divisors (see below), whose sum is σ = 229398897000. Its totient is φ = 100834679520.

The previous prime is 155033320109. The next prime is 155033320157. The reversal of 155033320131 is 131023330551.

155033320131 is a `hidden beast` number, since 1 + 5 + 503 + 3 + 3 + 20 + 131 = 666.

It is not a de Polignac number, because 155033320131 - 2¹⁰ = 155033319107 is a prime.

It is a super-2 number, since 2×155033320131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155033320095 and 155033320104.

It is not an unprimeable number, because it can be changed into a prime (155033320931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210071881 + ... + 210072618.

It is an arithmetic number, because the mean of its divisors is an integer number (19116574750).

Almost surely, 2^155033320131 is an apocalyptic number.

155033320131 is a deficient number, since it is larger than the sum of its proper divisors (74365576869).

155033320131 is a wasteful number, since it uses less digits than its factorization.

155033320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420144546 (or 420144543 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 155033320131 its reverse (131023330551), we get a palindrome (286056650682).

The spelling of 155033320131 in words is "one hundred fifty-five billion, thirty-three million, three hundred twenty thousand, one hundred thirty-one".