1011314220409 has 2 divisors, whose sum is σ = 1011314220410. Its totient is φ = 1011314220408.

The previous prime is 1011314220407. The next prime is 1011314220461. The reversal of 1011314220409 is 9040224131101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790982554384 + 220331666025 = 889372^2 + 469395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011314220409 - 2¹ = 1011314220407 is a prime.

Together with 1011314220407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1011314220407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505657110204 + 505657110205.

It is an arithmetic number, because the mean of its divisors is an integer number (505657110205).

Almost surely, 2^{1011314220409} is an apocalyptic number.

It is an amenable number.

1011314220409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011314220409 is an equidigital number, since it uses as much as digits as its factorization.

1011314220409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 1011314220409 in words is "one trillion, eleven billion, three hundred fourteen million, two hundred twenty thousand, four hundred nine".