30321431477 has 2 divisors, whose sum is σ = 30321431478. Its totient is φ = 30321431476.

The previous prime is 30321431411. The next prime is 30321431519. The reversal of 30321431477 is 77413412303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30312899236 + 8532241 = 174106^2 + 2921^2 .

It is a cyclic number.

It is not a de Polignac number, because 30321431477 - 2⁸ = 30321431221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30321431377) 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, 15160715738 + 15160715739.

It is an arithmetic number, because the mean of its divisors is an integer number (15160715739).

Almost surely, 2^30321431477 is an apocalyptic number.

It is an amenable number.

30321431477 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321431477 is an equidigital number, since it uses as much as digits as its factorization.

30321431477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 30321431477 in words is "thirty billion, three hundred twenty-one million, four hundred thirty-one thousand, four hundred seventy-seven".