1011840061 has 2 divisors, whose sum is σ = 1011840062. Its totient is φ = 1011840060.

The previous prime is 1011839993. The next prime is 1011840083. The reversal of 1011840061 is 1600481101.

It is an a-pointer prime, because the next prime (1011840083) can be obtained adding 1011840061 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810483961 + 201356100 = 28469^2 + 14190^2 .

It is an emirp because it is prime and its reverse (1600481101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011840061 - 2¹¹ = 1011838013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011840761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505920030 + 505920031.

It is an arithmetic number, because the mean of its divisors is an integer number (505920031).

Almost surely, 2^1011840061 is an apocalyptic number.

It is an amenable number.

1011840061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011840061 is an equidigital number, since it uses as much as digits as its factorization.

1011840061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1011840061 is about 31809.4335221487. The cubic root of 1011840061 is about 1003.9312123182.

The spelling of 1011840061 in words is "one billion, eleven million, eight hundred forty thousand, sixty-one".