1011117061 has 2 divisors, whose sum is σ = 1011117062. Its totient is φ = 1011117060.

The previous prime is 1011116999. The next prime is 1011117071. The reversal of 1011117061 is 1607111101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1002672225 + 8444836 = 31665^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011117061 - 2¹¹ = 1011115013 is a prime.

It is a super-2 number, since 2×1011117061² = 2044715422090555442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011117071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505558530 + 505558531.

It is an arithmetic number, because the mean of its divisors is an integer number (505558531).

Almost surely, 2^1011117061 is an apocalyptic number.

It is an amenable number.

1011117061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011117061 is an equidigital number, since it uses as much as digits as its factorization.

1011117061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 19.

The square root of 1011117061 is about 31798.0669381018. The cubic root of 1011117061 is about 1003.6920390719.

Adding to 1011117061 its reverse (1607111101), we get a palindrome (2618228162).

It can be divided in two parts, 10111 and 17061, that added together give a palindrome (27172).

The spelling of 1011117061 in words is "one billion, eleven million, one hundred seventeen thousand, sixty-one".