61200011 has 4 divisors (see below), whose sum is σ = 62113512. Its totient is φ = 60286512.

The previous prime is 61199993. The next prime is 61200023. The reversal of 61200011 is 11000216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61200011 - 2¹⁴ = 61183627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61199965 and 61200001.

It is not an unprimeable number, because it can be changed into a prime (61200031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456650 + ... + 456783.

It is an arithmetic number, because the mean of its divisors is an integer number (15528378).

Almost surely, 2^61200011 is an apocalyptic number.

61200011 is a deficient number, since it is larger than the sum of its proper divisors (913501).

61200011 is an equidigital number, since it uses as much as digits as its factorization.

61200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913500.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 61200011 is about 7823.0435892944. The cubic root of 61200011 is about 394.0794908627.

Adding to 61200011 its reverse (11000216), we get a palindrome (72200227).

The spelling of 61200011 in words is "sixty-one million, two hundred thousand, eleven".