105155041261 has 2 divisors, whose sum is σ = 105155041262. Its totient is φ = 105155041260.

The previous prime is 105155041219. The next prime is 105155041267. The reversal of 105155041261 is 162140551501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75663504900 + 29491536361 = 275070^2 + 171731^2 .

It is a cyclic number.

It is not a de Polignac number, because 105155041261 - 2¹³ = 105155033069 is a prime.

It is a super-2 number, since 2×105155041261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105155041267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52577520630 + 52577520631.

It is an arithmetic number, because the mean of its divisors is an integer number (52577520631).

Almost surely, 2^105155041261 is an apocalyptic number.

It is an amenable number.

105155041261 is a deficient number, since it is larger than the sum of its proper divisors (1).

105155041261 is an equidigital number, since it uses as much as digits as its factorization.

105155041261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 105155041261 its reverse (162140551501), we get a palindrome (267295592762).

The spelling of 105155041261 in words is "one hundred five billion, one hundred fifty-five million, forty-one thousand, two hundred sixty-one".