102443213211240 has 128 divisors (see below), whose sum is σ = 335271966635520. Its totient is φ = 24834476217600.

The previous prime is 102443213211203. The next prime is 102443213211253. The reversal of 102443213211240 is 42112312344201.

It is a happy number.

It is a super-2 number, since 2×102443213211240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 102443213211198 and 102443213211207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161180875 + ... + 161815205.

It is an arithmetic number, because the mean of its divisors is an integer number (2619312239340).

Almost surely, 2^{102443213211240} is an apocalyptic number.

102443213211240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102443213211240 is an abundant number, since it is smaller than the sum of its proper divisors (232828753424280).

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

102443213211240 is a wasteful number, since it uses less digits than its factorization.

102443213211240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756703 (or 756699 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 102443213211240 its reverse (42112312344201), we get a palindrome (144555525555441).

The spelling of 102443213211240 in words is "one hundred two trillion, four hundred forty-three billion, two hundred thirteen million, two hundred eleven thousand, two hundred forty".