140303311 has 4 divisors (see below), whose sum is σ = 141232624. Its totient is φ = 139374000.

The previous prime is 140303291. The next prime is 140303327. The reversal of 140303311 is 113303041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113303041 = 47 ⋅2410703.

It is a cyclic number.

It is not a de Polignac number, because 140303311 - 2¹⁷ = 140172239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140303341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464430 + ... + 464731.

It is an arithmetic number, because the mean of its divisors is an integer number (35308156).

Almost surely, 2^140303311 is an apocalyptic number.

140303311 is a deficient number, since it is larger than the sum of its proper divisors (929313).

140303311 is an equidigital number, since it uses as much as digits as its factorization.

140303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929312.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 140303311 is about 11844.9698606624. The cubic root of 140303311 is about 519.6241255594.

Adding to 140303311 its reverse (113303041), we get a palindrome (253606352).

The spelling of 140303311 in words is "one hundred forty million, three hundred three thousand, three hundred eleven".