4520220421031 has 32 divisors (see below), whose sum is σ = 5452555046400. Its totient is φ = 3660643774080.

The previous prime is 4520220420983. The next prime is 4520220421081. The reversal of 4520220421031 is 1301240220254.

It is a cyclic number.

It is not a de Polignac number, because 4520220421031 - 2²² = 4520216226727 is a prime.

It is a super-2 number, since 2×4520220421031² (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 (4520220421081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121319801 + ... + 121357053.

It is an arithmetic number, because the mean of its divisors is an integer number (170392345200).

Almost surely, 2^{4520220421031} is an apocalyptic number.

4520220421031 is a deficient number, since it is larger than the sum of its proper divisors (932334625369).

4520220421031 is a wasteful number, since it uses less digits than its factorization.

4520220421031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39719.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 4520220421031 its reverse (1301240220254), we get a palindrome (5821460641285).

The spelling of 4520220421031 in words is "four trillion, five hundred twenty billion, two hundred twenty million, four hundred twenty-one thousand, thirty-one".