30355225231 has 2 divisors, whose sum is σ = 30355225232. Its totient is φ = 30355225230.

The previous prime is 30355225217. The next prime is 30355225249. The reversal of 30355225231 is 13252255303.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30355225231 is a prime.

It is a super-2 number, since 2×30355225231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30355225193 and 30355225202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30355225291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15177612615 + 15177612616.

It is an arithmetic number, because the mean of its divisors is an integer number (15177612616).

Almost surely, 2^30355225231 is an apocalyptic number.

30355225231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30355225231 is an equidigital number, since it uses as much as digits as its factorization.

30355225231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 30355225231 in words is "thirty billion, three hundred fifty-five million, two hundred twenty-five thousand, two hundred thirty-one".