61113344421 has 8 divisors (see below), whose sum is σ = 86277662784. Its totient is φ = 38345627840.

The previous prime is 61113344419. The next prime is 61113344443. The reversal of 61113344421 is 12444331116.

61113344421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61113344421 - 2¹ = 61113344419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61113344401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599150385 + ... + 599150486.

It is an arithmetic number, because the mean of its divisors is an integer number (10784707848).

Almost surely, 2^61113344421 is an apocalyptic number.

It is an amenable number.

61113344421 is a deficient number, since it is larger than the sum of its proper divisors (25164318363).

61113344421 is a wasteful number, since it uses less digits than its factorization.

61113344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198300891.

The product of its digits is 6912, while the sum is 30.

Adding to 61113344421 its reverse (12444331116), we get a palindrome (73557675537).

The spelling of 61113344421 in words is "sixty-one billion, one hundred thirteen million, three hundred forty-four thousand, four hundred twenty-one".