102223040240 has 20 divisors (see below), whose sum is σ = 237668568744. Its totient is φ = 40889216064.

The previous prime is 102223040233. The next prime is 102223040243. The reversal of 102223040240 is 42040322201.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102223040243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638893922 + ... + 638894081.

Almost surely, 2^102223040240 is an apocalyptic number.

102223040240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102223040240 is an abundant number, since it is smaller than the sum of its proper divisors (135445528504).

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

102223040240 is a wasteful number, since it uses less digits than its factorization.

102223040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277788016 (or 1277788010 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 102223040240 its reverse (42040322201), we get a palindrome (144263362441).

The spelling of 102223040240 in words is "one hundred two billion, two hundred twenty-three million, forty thousand, two hundred forty".