4155521015131 has 2 divisors, whose sum is σ = 4155521015132. Its totient is φ = 4155521015130.

The previous prime is 4155521015083. The next prime is 4155521015159. The reversal of 4155521015131 is 1315101255514.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4155521015131 - 2¹⁹ = 4155520490843 is a prime.

It is a super-2 number, since 2×4155521015131² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4155521015231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077760507565 + 2077760507566.

It is an arithmetic number, because the mean of its divisors is an integer number (2077760507566).

Almost surely, 2^{4155521015131} is an apocalyptic number.

4155521015131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155521015131 is an equidigital number, since it uses as much as digits as its factorization.

4155521015131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15000, while the sum is 34.

The spelling of 4155521015131 in words is "four trillion, one hundred fifty-five billion, five hundred twenty-one million, fifteen thousand, one hundred thirty-one".