53403343311 has 16 divisors (see below), whose sum is σ = 73221943424. Its totient is φ = 34595934624.

The previous prime is 53403343271. The next prime is 53403343319. The reversal of 53403343311 is 11334330435.

It is not a de Polignac number, because 53403343311 - 2¹³ = 53403335119 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 (53403343319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218305 + ... + 393018.

It is an arithmetic number, because the mean of its divisors is an integer number (4576371464).

Almost surely, 2^53403343311 is an apocalyptic number.

53403343311 is a deficient number, since it is larger than the sum of its proper divisors (19818600113).

53403343311 is a wasteful number, since it uses less digits than its factorization.

53403343311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612150.

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 53403343311 its reverse (11334330435), we get a palindrome (64737673746).

The spelling of 53403343311 in words is "fifty-three billion, four hundred three million, three hundred forty-three thousand, three hundred eleven".