3506016015121 has 2 divisors, whose sum is σ = 3506016015122. Its totient is φ = 3506016015120.

The previous prime is 3506016015037. The next prime is 3506016015127. The reversal of 3506016015121 is 1215106106053.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2013064380625 + 1492951634496 = 1418825^2 + 1221864^2 .

It is a cyclic number.

It is not a de Polignac number, because 3506016015121 - 2⁹ = 3506016014609 is a prime.

It is a super-2 number, since 2×3506016015121² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3506016015127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753008007560 + 1753008007561.

It is an arithmetic number, because the mean of its divisors is an integer number (1753008007561).

Almost surely, 2^{3506016015121} is an apocalyptic number.

It is an amenable number.

3506016015121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506016015121 is an equidigital number, since it uses as much as digits as its factorization.

3506016015121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 3506016015121 in words is "three trillion, five hundred six billion, sixteen million, fifteen thousand, one hundred twenty-one".