1011100101857 has 2 divisors, whose sum is σ = 1011100101858. Its totient is φ = 1011100101856.

The previous prime is 1011100101769. The next prime is 1011100101923. The reversal of 1011100101857 is 7581010011101.

1011100101857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 953843269201 + 57256832656 = 976649^2 + 239284^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011100101857 - 2²² = 1011095907553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011100103857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505550050928 + 505550050929.

It is an arithmetic number, because the mean of its divisors is an integer number (505550050929).

Almost surely, 2^{1011100101857} is an apocalyptic number.

It is an amenable number.

1011100101857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011100101857 is an equidigital number, since it uses as much as digits as its factorization.

1011100101857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 26.

Adding to 1011100101857 its reverse (7581010011101), we get a palindrome (8592110112958).

The spelling of 1011100101857 in words is "one trillion, eleven billion, one hundred million, one hundred one thousand, eight hundred fifty-seven".