30699020293 has 8 divisors (see below), whose sum is σ = 30751018200. Its totient is φ = 30647063040.

The previous prime is 30699020269. The next prime is 30699020321. The reversal of 30699020293 is 39202099603.

It can be written as a sum of positive squares in 4 ways, for example, as 1989784449 + 28709235844 = 44607^2 + 169438^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30699020293 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 (30699020203) 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, 1750633 + ... + 1768081.

It is an arithmetic number, because the mean of its divisors is an integer number (3843877275).

Almost surely, 2^30699020293 is an apocalyptic number.

It is an amenable number.

30699020293 is a deficient number, since it is larger than the sum of its proper divisors (51997907).

30699020293 is a wasteful number, since it uses less digits than its factorization.

30699020293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20327.

The product of its (nonzero) digits is 157464, while the sum is 43.

The spelling of 30699020293 in words is "thirty billion, six hundred ninety-nine million, twenty thousand, two hundred ninety-three".