102431220044 has 24 divisors (see below), whose sum is σ = 185456187840. Its totient is φ = 49444125696.

The previous prime is 102431220041. The next prime is 102431220053. The reversal of 102431220044 is 440022134201.

It is not an unprimeable number, because it can be changed into a prime (102431220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137149 + ... + 1223915.

It is an arithmetic number, because the mean of its divisors is an integer number (7727341160).

Almost surely, 2^102431220044 is an apocalyptic number.

It is an amenable number.

102431220044 is a deficient number, since it is larger than the sum of its proper divisors (83024967796).

102431220044 is a wasteful number, since it uses less digits than its factorization.

102431220044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96977 (or 96975 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 102431220044 its reverse (440022134201), we get a palindrome (542453354245).

The spelling of 102431220044 in words is "one hundred two billion, four hundred thirty-one million, two hundred twenty thousand, forty-four".