1001201120057 has 2 divisors, whose sum is σ = 1001201120058. Its totient is φ = 1001201120056.

The previous prime is 1001201120009. The next prime is 1001201120083. The reversal of 1001201120057 is 7500211021001.

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., 924403408681 + 76797711376 = 961459^2 + 277124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001201120057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001201123057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500600560028 + 500600560029.

It is an arithmetic number, because the mean of its divisors is an integer number (500600560029).

Almost surely, 2^{1001201120057} is an apocalyptic number.

It is an amenable number.

1001201120057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001201120057 is an equidigital number, since it uses as much as digits as its factorization.

1001201120057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

Adding to 1001201120057 its reverse (7500211021001), we get a palindrome (8501412141058).

The spelling of 1001201120057 in words is "one trillion, one billion, two hundred one million, one hundred twenty thousand, fifty-seven".