4521220051431 has 16 divisors (see below), whose sum is σ = 6186293648640. Its totient is φ = 2935407737280.

The previous prime is 4521220051393. The next prime is 4521220051459. The reversal of 4521220051431 is 1341500221254.

It is not a de Polignac number, because 4521220051431 - 2⁷ = 4521220051303 is a prime.

It is a super-2 number, since 2×4521220051431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521260051431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32575411 + ... + 32713908.

It is an arithmetic number, because the mean of its divisors is an integer number (386643353040).

Almost surely, 2^{4521220051431} is an apocalyptic number.

4521220051431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4521220051431 is a deficient number, since it is larger than the sum of its proper divisors (1665073597209).

4521220051431 is a wasteful number, since it uses less digits than its factorization.

4521220051431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65289926.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 4521220051431 its reverse (1341500221254), we get a palindrome (5862720272685).

The spelling of 4521220051431 in words is "four trillion, five hundred twenty-one billion, two hundred twenty million, fifty-one thousand, four hundred thirty-one".