35130801721 has 2 divisors, whose sum is σ = 35130801722. Its totient is φ = 35130801720.

The previous prime is 35130801689. The next prime is 35130801731. The reversal of 35130801721 is 12710803153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25900396096 + 9230405625 = 160936^2 + 96075^2 .

It is a cyclic number.

It is not a de Polignac number, because 35130801721 - 2⁵ = 35130801689 is a prime.

It is not a weakly prime, because it can be changed into another prime (35130801731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17565400860 + 17565400861.

It is an arithmetic number, because the mean of its divisors is an integer number (17565400861).

Almost surely, 2^35130801721 is an apocalyptic number.

It is an amenable number.

35130801721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35130801721 is an equidigital number, since it uses as much as digits as its factorization.

35130801721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 35130801721 in words is "thirty-five billion, one hundred thirty million, eight hundred one thousand, seven hundred twenty-one".