61307011 has 2 divisors, whose sum is σ = 61307012. Its totient is φ = 61307010.

The previous prime is 61307003. The next prime is 61307033. The reversal of 61307011 is 11070316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61307011 - 2³ = 61307003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61307011.

It is not a weakly prime, because it can be changed into another prime (61307111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30653505 + 30653506.

It is an arithmetic number, because the mean of its divisors is an integer number (30653506).

Almost surely, 2^61307011 is an apocalyptic number.

61307011 is a deficient number, since it is larger than the sum of its proper divisors (1).

61307011 is an equidigital number, since it uses as much as digits as its factorization.

61307011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 61307011 is about 7829.8793732726. The cubic root of 61307011 is about 394.3090221679.

Adding to 61307011 its reverse (11070316), we get a palindrome (72377327).

The spelling of 61307011 in words is "sixty-one million, three hundred seven thousand, eleven".