320437135100811 has 16 divisors (see below), whose sum is σ = 428410153721088. Its totient is φ = 213044942781600.

The previous prime is 320437135100809. The next prime is 320437135100923. The reversal of 320437135100811 is 118001531734023.

It is not a de Polignac number, because 320437135100811 - 2¹ = 320437135100809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320437135100811.

It is not an unprimeable number, because it can be changed into a prime (320437135100611) 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, 60738381 + ... + 65802926.

It is an arithmetic number, because the mean of its divisors is an integer number (26775634607568).

Almost surely, 2^{320437135100811} is an apocalyptic number.

320437135100811 is a deficient number, since it is larger than the sum of its proper divisors (107973018620277).

320437135100811 is a wasteful number, since it uses less digits than its factorization.

320437135100811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126543602.

The product of its (nonzero) digits is 60480, while the sum is 39.

Adding to 320437135100811 its reverse (118001531734023), we get a palindrome (438438666834834).

The spelling of 320437135100811 in words is "three hundred twenty trillion, four hundred thirty-seven billion, one hundred thirty-five million, one hundred thousand, eight hundred eleven".