30743721053 has 8 divisors (see below), whose sum is σ = 30884275800. Its totient is φ = 30603221568.

The previous prime is 30743721049. The next prime is 30743721059. The reversal of 30743721053 is 35012734703.

It can be written as a sum of positive squares in 4 ways, for example, as 313360804 + 30430360249 = 17702^2 + 174443^2 .

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 30743721053 - 2² = 30743721049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30743721059) 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, 1452575 + ... + 1473587.

It is an arithmetic number, because the mean of its divisors is an integer number (3860534475).

Almost surely, 2^30743721053 is an apocalyptic number.

It is an amenable number.

30743721053 is a deficient number, since it is larger than the sum of its proper divisors (140554747).

30743721053 is a wasteful number, since it uses less digits than its factorization.

30743721053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27631.

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 30743721053 in words is "thirty billion, seven hundred forty-three million, seven hundred twenty-one thousand, fifty-three".