61111011 has 16 divisors (see below), whose sum is σ = 92368640. Its totient is φ = 35627040.

The previous prime is 61110997. The next prime is 61111019. The reversal of 61111011 is 11011116.

It is not a de Polignac number, because 61111011 - 2⁷ = 61110883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61111019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40495 + ... + 41976.

It is an arithmetic number, because the mean of its divisors is an integer number (5773040).

Almost surely, 2^61111011 is an apocalyptic number.

61111011 is a deficient number, since it is larger than the sum of its proper divisors (31257629).

61111011 is a wasteful number, since it uses less digits than its factorization.

61111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82506.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 61111011 is about 7817.3531965749. The cubic root of 61111011 is about 393.8883684020. Note that the first 3 decimals are identical.

Adding to 61111011 its reverse (11011116), we get a palindrome (72122127).

The spelling of 61111011 in words is "sixty-one million, one hundred eleven thousand, eleven".