102423240444 has 24 divisors (see below), whose sum is σ = 273128641408. Its totient is φ = 29263782960.

The previous prime is 102423240379. The next prime is 102423240457. The reversal of 102423240444 is 444042324201.

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, 609662062 + ... + 609662229.

Almost surely, 2^102423240444 is an apocalyptic number.

102423240444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102423240444 is an abundant number, since it is smaller than the sum of its proper divisors (170705400964).

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

102423240444 is a wasteful number, since it uses less digits than its factorization.

102423240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219324305 (or 1219324303 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 102423240444 its reverse (444042324201), we get a palindrome (546465564645).

The spelling of 102423240444 in words is "one hundred two billion, four hundred twenty-three million, two hundred forty thousand, four hundred forty-four".