111001011061 has 2 divisors, whose sum is σ = 111001011062. Its totient is φ = 111001011060.

The previous prime is 111001011041. The next prime is 111001011113. The reversal of 111001011061 is 160110100111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97659375025 + 13341636036 = 312505^2 + 115506^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001011061 - 2⁷ = 111001010933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111001011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500505530 + 55500505531.

It is an arithmetic number, because the mean of its divisors is an integer number (55500505531).

Almost surely, 2^111001011061 is an apocalyptic number.

It is an amenable number.

111001011061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001011061 is an equidigital number, since it uses as much as digits as its factorization.

111001011061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 111001011061 its reverse (160110100111), we get a palindrome (271111111172).

The spelling of 111001011061 in words is "one hundred eleven billion, one million, eleven thousand, sixty-one".