43130310202081 has 2 divisors, whose sum is σ = 43130310202082. Its totient is φ = 43130310202080.

The previous prime is 43130310202033. The next prime is 43130310202183. The reversal of 43130310202081 is 18020201303134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40803465042081 + 2326845160000 = 6387759^2 + 1525400^2 .

It is a cyclic number.

It is not a de Polignac number, because 43130310202081 - 2³³ = 43121720267489 is a prime.

It is a super-2 number, since 2×43130310202081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43130310209081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21565155101040 + 21565155101041.

It is an arithmetic number, because the mean of its divisors is an integer number (21565155101041).

Almost surely, 2^{43130310202081} is an apocalyptic number.

It is an amenable number.

43130310202081 is a deficient number, since it is larger than the sum of its proper divisors (1).

43130310202081 is an equidigital number, since it uses as much as digits as its factorization.

43130310202081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 43130310202081 in words is "forty-three trillion, one hundred thirty billion, three hundred ten million, two hundred two thousand, eighty-one".