1101000120001 has 2 divisors, whose sum is σ = 1101000120002. Its totient is φ = 1101000120000.

The previous prime is 1101000119903. The next prime is 1101000120019. The reversal of 1101000120001 is 1000210001011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050212990401 + 50787129600 = 1024799^2 + 225360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101000120001 - 2⁹ = 1101000119489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101000120601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550500060000 + 550500060001.

It is an arithmetic number, because the mean of its divisors is an integer number (550500060001).

Almost surely, 2^{1101000120001} is an apocalyptic number.

It is an amenable number.

1101000120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101000120001 is an equidigital number, since it uses as much as digits as its factorization.

1101000120001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1101000120001 its reverse (1000210001011), we get a palindrome (2101210121012).

The spelling of 1101000120001 in words is "one trillion, one hundred one billion, one hundred twenty thousand, one".