511045231421211 has 16 divisors (see below), whose sum is σ = 682757653656960. Its totient is φ = 340015495377600.

The previous prime is 511045231421201. The next prime is 511045231421213. The reversal of 511045231421211 is 112124132540115.

It is a happy number.

It is not a de Polignac number, because 511045231421211 - 2⁷ = 511045231421083 is a prime.

It is a super-2 number, since 2×511045231421211² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511045231421213) 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, 82033081 + ... + 88042698.

It is an arithmetic number, because the mean of its divisors is an integer number (42672353353560).

Almost surely, 2^{511045231421211} is an apocalyptic number.

511045231421211 is a deficient number, since it is larger than the sum of its proper divisors (171712422235749).

511045231421211 is a wasteful number, since it uses less digits than its factorization.

511045231421211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170077786.

The product of its (nonzero) digits is 9600, while the sum is 33.

Adding to 511045231421211 its reverse (112124132540115), we get a palindrome (623169363961326).

The spelling of 511045231421211 in words is "five hundred eleven trillion, forty-five billion, two hundred thirty-one million, four hundred twenty-one thousand, two hundred eleven".