61344143203 has 16 divisors (see below), whose sum is σ = 73170247680. Its totient is φ = 50284609056.

The previous prime is 61344143197. The next prime is 61344143251. The reversal of 61344143203 is 30234144316.

61344143203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61344143203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61344140203) 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, 840318 + ... + 910396.

It is an arithmetic number, because the mean of its divisors is an integer number (4573140480).

Almost surely, 2^61344143203 is an apocalyptic number.

61344143203 is a deficient number, since it is larger than the sum of its proper divisors (11826104477).

61344143203 is a wasteful number, since it uses less digits than its factorization.

61344143203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75546.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 61344143203 its reverse (30234144316), we get a palindrome (91578287519).

The spelling of 61344143203 in words is "sixty-one billion, three hundred forty-four million, one hundred forty-three thousand, two hundred three".