43033540313 has 2 divisors, whose sum is σ = 43033540314. Its totient is φ = 43033540312.

The previous prime is 43033540267. The next prime is 43033540367. The reversal of 43033540313 is 31304533034.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35816698009 + 7216842304 = 189253^2 + 84952^2 .

It is a cyclic number.

It is not a de Polignac number, because 43033540313 - 2¹⁶ = 43033474777 is a prime.

It is a super-2 number, since 2×43033540313² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43033540373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21516770156 + 21516770157.

It is an arithmetic number, because the mean of its divisors is an integer number (21516770157).

Almost surely, 2^43033540313 is an apocalyptic number.

It is an amenable number.

43033540313 is a deficient number, since it is larger than the sum of its proper divisors (1).

43033540313 is an equidigital number, since it uses as much as digits as its factorization.

43033540313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 29.

The spelling of 43033540313 in words is "forty-three billion, thirty-three million, five hundred forty thousand, three hundred thirteen".