220140311 has 2 divisors, whose sum is σ = 220140312. Its totient is φ = 220140310.

The previous prime is 220140301. The next prime is 220140317. The reversal of 220140311 is 113041022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220140311 - 2¹⁸ = 219878167 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220140317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110070155 + 110070156.

It is an arithmetic number, because the mean of its divisors is an integer number (110070156).

Almost surely, 2^220140311 is an apocalyptic number.

220140311 is a deficient number, since it is larger than the sum of its proper divisors (1).

220140311 is an equidigital number, since it uses as much as digits as its factorization.

220140311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 220140311 is about 14837.1261031239. The cubic root of 220140311 is about 603.8093844287.

Adding to 220140311 its reverse (113041022), we get a palindrome (333181333).

The spelling of 220140311 in words is "two hundred twenty million, one hundred forty thousand, three hundred eleven".