1201000101011 has 2 divisors, whose sum is σ = 1201000101012. Its totient is φ = 1201000101010.

The previous prime is 1201000100969. The next prime is 1201000101017. The reversal of 1201000101011 is 1101010001021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201000101011 - 2¹⁰ = 1201000099987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201000101011.

It is not a weakly prime, because it can be changed into another prime (1201000101017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600500050505 + 600500050506.

It is an arithmetic number, because the mean of its divisors is an integer number (600500050506).

Almost surely, 2^{1201000101011} is an apocalyptic number.

1201000101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201000101011 is an equidigital number, since it uses as much as digits as its factorization.

1201000101011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1201000101011 its reverse (1101010001021), we get a palindrome (2302010102032).

It can be divided in two parts, 12010001010 and 11, that added together give a palindrome (12010001021).

The spelling of 1201000101011 in words is "one trillion, two hundred one billion, one hundred one thousand, eleven".