215031040043 has 2 divisors, whose sum is σ = 215031040044. Its totient is φ = 215031040042.

The previous prime is 215031040039. The next prime is 215031040061. The reversal of 215031040043 is 340040130512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215031040043 - 2² = 215031040039 is a prime.

It is not a weakly prime, because it can be changed into another prime (215031040013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107515520021 + 107515520022.

It is an arithmetic number, because the mean of its divisors is an integer number (107515520022).

Almost surely, 2^215031040043 is an apocalyptic number.

215031040043 is a deficient number, since it is larger than the sum of its proper divisors (1).

215031040043 is an equidigital number, since it uses as much as digits as its factorization.

215031040043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 215031040043 its reverse (340040130512), we get a palindrome (555071170555).

The spelling of 215031040043 in words is "two hundred fifteen billion, thirty-one million, forty thousand, forty-three".