30523072357 has 2 divisors, whose sum is σ = 30523072358. Its totient is φ = 30523072356.

The previous prime is 30523072343. The next prime is 30523072387. The reversal of 30523072357 is 75327032503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27624434436 + 2898637921 = 166206^2 + 53839^2 .

It is a cyclic number.

It is not a de Polignac number, because 30523072357 - 2¹¹ = 30523070309 is a prime.

It is a super-2 number, since 2×30523072357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30523072387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15261536178 + 15261536179.

It is an arithmetic number, because the mean of its divisors is an integer number (15261536179).

Almost surely, 2^30523072357 is an apocalyptic number.

It is an amenable number.

30523072357 is a deficient number, since it is larger than the sum of its proper divisors (1).

30523072357 is an equidigital number, since it uses as much as digits as its factorization.

30523072357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 37.

The spelling of 30523072357 in words is "thirty billion, five hundred twenty-three million, seventy-two thousand, three hundred fifty-seven".