431420322102 has 128 divisors (see below), whose sum is σ = 1147345689600. Its totient is φ = 104695541760.

The previous prime is 431420322049. The next prime is 431420322103. The reversal of 431420322102 is 201223024134.

It is a happy number.

It is a super-2 number, since 2×431420322102² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431420322103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 875524 + ... + 1276472.

It is an arithmetic number, because the mean of its divisors is an integer number (8963638200).

Almost surely, 2^431420322102 is an apocalyptic number.

431420322102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 431420322102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573672844800).

431420322102 is an abundant number, since it is smaller than the sum of its proper divisors (715925367498).

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

431420322102 is a wasteful number, since it uses less digits than its factorization.

431420322102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401126.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 431420322102 its reverse (201223024134), we get a palindrome (632643346236).

It can be divided in two parts, 43142032 and 2102, that added together give a palindrome (43144134).

The spelling of 431420322102 in words is "four hundred thirty-one billion, four hundred twenty million, three hundred twenty-two thousand, one hundred two".