61110012 has 12 divisors (see below), whose sum is σ = 142590056. Its totient is φ = 20370000.

The previous prime is 61109999. The next prime is 61110089. The reversal of 61110012 is 21001116.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 5092501 = 61110012 / (6 + 1 + 1 + 1 + 0 + 0 + 1 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 61110012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2546239 + ... + 2546262.

Almost surely, 2^61110012 is an apocalyptic number.

It is an amenable number.

61110012 is an abundant number, since it is smaller than the sum of its proper divisors (81480044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61110012 is a wasteful number, since it uses less digits than its factorization.

61110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092508 (or 5092506 counting only the distinct ones).

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

The square root of 61110012 is about 7817.2893000067. The cubic root of 61110012 is about 393.8862220533.

Adding to 61110012 its reverse (21001116), we get a palindrome (82111128).

The spelling of 61110012 in words is "sixty-one million, one hundred ten thousand, twelve".