4431312102 has 16 divisors (see below), whose sum is σ = 10128713472. Its totient is φ = 1266089160.

The previous prime is 4431312091. The next prime is 4431312167. The reversal of 4431312102 is 2012131344.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 52753674 + ... + 52753757.

It is an arithmetic number, because the mean of its divisors is an integer number (633044592).

Almost surely, 2^4431312102 is an apocalyptic number.

4431312102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4431312102 is an abundant number, since it is smaller than the sum of its proper divisors (5697401370).

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

4431312102 is a wasteful number, since it uses less digits than its factorization.

4431312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105507443.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4431312102 is about 66568.1012347506. The cubic root of 4431312102 is about 1642.5204282422.

Adding to 4431312102 its reverse (2012131344), we get a palindrome (6443443446).

The spelling of 4431312102 in words is "four billion, four hundred thirty-one million, three hundred twelve thousand, one hundred two".