61011003 has 16 divisors (see below), whose sum is σ = 83255040. Its totient is φ = 39727584.

The previous prime is 61010953. The next prime is 61011053. The reversal of 61011003 is 30011016.

It is an interprime number because it is at equal distance from previous prime (61010953) and next prime (61011053).

It is not a de Polignac number, because 61011003 - 2¹⁰ = 61009979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61011003.

It is not an unprimeable number, because it can be changed into a prime (61011053) 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, 41088 + ... + 42546.

It is an arithmetic number, because the mean of its divisors is an integer number (5203440).

Almost surely, 2^61011003 is an apocalyptic number.

61011003 is a deficient number, since it is larger than the sum of its proper divisors (22244037).

61011003 is a wasteful number, since it uses less digits than its factorization.

61011003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 61011003 is about 7810.9540390403. The cubic root of 61011003 is about 393.6733853455.

Adding to 61011003 its reverse (30011016), we get a palindrome (91022019).

The spelling of 61011003 in words is "sixty-one million, eleven thousand, three".