30220231357 has 2 divisors, whose sum is σ = 30220231358. Its totient is φ = 30220231356.

The previous prime is 30220231319. The next prime is 30220231381. The reversal of 30220231357 is 75313202203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27653694436 + 2566536921 = 166294^2 + 50661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30220231357 is a prime.

It is a super-2 number, since 2×30220231357² (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 (30220231387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110115678 + 15110115679.

It is an arithmetic number, because the mean of its divisors is an integer number (15110115679).

Almost surely, 2^30220231357 is an apocalyptic number.

It is an amenable number.

30220231357 is a deficient number, since it is larger than the sum of its proper divisors (1).

30220231357 is an equidigital number, since it uses as much as digits as its factorization.

30220231357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The spelling of 30220231357 in words is "thirty billion, two hundred twenty million, two hundred thirty-one thousand, three hundred fifty-seven".