3105106040521 has 2 divisors, whose sum is σ = 3105106040522. Its totient is φ = 3105106040520.

The previous prime is 3105106040501. The next prime is 3105106040527. The reversal of 3105106040521 is 1250406015013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1905338515600 + 1199767524921 = 1380340^2 + 1095339^2 .

It is a cyclic number.

It is not a de Polignac number, because 3105106040521 - 2¹⁷ = 3105105909449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3105106040521.

It is not a weakly prime, because it can be changed into another prime (3105106040527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552553020260 + 1552553020261.

It is an arithmetic number, because the mean of its divisors is an integer number (1552553020261).

Almost surely, 2^{3105106040521} is an apocalyptic number.

It is an amenable number.

3105106040521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105106040521 is an equidigital number, since it uses as much as digits as its factorization.

3105106040521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 3105106040521 in words is "three trillion, one hundred five billion, one hundred six million, forty thousand, five hundred twenty-one".