1101959467909 has 2 divisors, whose sum is σ = 1101959467910. Its totient is φ = 1101959467908.

The previous prime is 1101959467841. The next prime is 1101959467963. The reversal of 1101959467909 is 9097649591011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 905818545025 + 196140922884 = 951745^2 + 442878^2 .

It is an emirp because it is prime and its reverse (9097649591011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101959467909 - 2¹³ = 1101959459717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101959467009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550979733954 + 550979733955.

It is an arithmetic number, because the mean of its divisors is an integer number (550979733955).

Almost surely, 2^{1101959467909} is an apocalyptic number.

It is an amenable number.

1101959467909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101959467909 is an equidigital number, since it uses as much as digits as its factorization.

1101959467909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5511240, while the sum is 61.

The spelling of 1101959467909 in words is "one trillion, one hundred one billion, nine hundred fifty-nine million, four hundred sixty-seven thousand, nine hundred nine".