102312201144 has 32 divisors (see below), whose sum is σ = 264600522000. Its totient is φ = 32928064512.

The previous prime is 102312201119. The next prime is 102312201149. The reversal of 102312201144 is 441102213201.

It is a self number, because there is not a number n which added to its sum of digits gives 102312201144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312201149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73499449 + ... + 73500840.

Almost surely, 2^102312201144 is an apocalyptic number.

It is an amenable number.

102312201144 is an abundant number, since it is smaller than the sum of its proper divisors (162288320856).

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

102312201144 is a wasteful number, since it uses less digits than its factorization.

102312201144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147000327 (or 147000323 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 102312201144 its reverse (441102213201), we get a palindrome (543414414345).

The spelling of 102312201144 in words is "one hundred two billion, three hundred twelve million, two hundred one thousand, one hundred forty-four".