431020430223220 has 24 divisors (see below), whose sum is σ = 905264252877600. Its totient is φ = 172385057916192.

The previous prime is 431020430223193. The next prime is 431020430223281. The reversal of 431020430223220 is 22322034020134.

It is a super-2 number, since 2×431020430223220² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444482910 + ... + 1444781269.

It is an arithmetic number, because the mean of its divisors is an integer number (37719343869900).

Almost surely, 2^{431020430223220} is an apocalyptic number.

It is an amenable number.

431020430223220 is an abundant number, since it is smaller than the sum of its proper divisors (474243822654380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431020430223220 is a wasteful number, since it uses less digits than its factorization.

431020430223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889271647 (or 2889271645 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 431020430223220 its reverse (22322034020134), we get a palindrome (453342464243354).

The spelling of 431020430223220 in words is "four hundred thirty-one trillion, twenty billion, four hundred thirty million, two hundred twenty-three thousand, two hundred twenty".