1255306542111 has 20 divisors (see below), whose sum is σ = 1875580251072. Its totient is φ = 836706241728.

The previous prime is 1255306542097. The next prime is 1255306542211. The reversal of 1255306542111 is 1112456035521.

1255306542111 is a `hidden beast` number, since 1 + 2 + 5 + 530 + 6 + 5 + 4 + 2 + 111 = 666.

It is not a de Polignac number, because 1255306542111 - 2¹⁰ = 1255306541087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255306542211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1111210 + ... + 1935303.

Almost surely, 2^{1255306542111} is an apocalyptic number.

1255306542111 is a deficient number, since it is larger than the sum of its proper divisors (620273708961).

1255306542111 is an equidigital number, since it uses as much as digits as its factorization.

1255306542111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051612 (or 3051603 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 1255306542111 in words is "one trillion, two hundred fifty-five billion, three hundred six million, five hundred forty-two thousand, one hundred eleven".