1011120202109 has 2 divisors, whose sum is σ = 1011120202110. Its totient is φ = 1011120202108.

The previous prime is 1011120202039. The next prime is 1011120202121. The reversal of 1011120202109 is 9012020211101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570825580900 + 440294621209 = 755530^2 + 663547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011120202109 - 2²⁴ = 1011103424893 is a prime.

It is a super-2 number, since 2×1011120202109² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011120201109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505560101054 + 505560101055.

It is an arithmetic number, because the mean of its divisors is an integer number (505560101055).

Almost surely, 2^{1011120202109} is an apocalyptic number.

It is an amenable number.

1011120202109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011120202109 is an equidigital number, since it uses as much as digits as its factorization.

1011120202109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1011120202109 in words is "one trillion, eleven billion, one hundred twenty million, two hundred two thousand, one hundred nine".