102345445212 has 48 divisors (see below), whose sum is σ = 239297496480. Its totient is φ = 34045004032.

The previous prime is 102345445093. The next prime is 102345445229. The reversal of 102345445212 is 212544543201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22655578 + ... + 22660094.

It is an arithmetic number, because the mean of its divisors is an integer number (4985364510).

Almost surely, 2^102345445212 is an apocalyptic number.

102345445212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102345445212 is an abundant number, since it is smaller than the sum of its proper divisors (136952051268).

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

102345445212 is a wasteful number, since it uses less digits than its factorization.

102345445212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7990 (or 7988 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 102345445212 its reverse (212544543201), we get a palindrome (314889988413).

The spelling of 102345445212 in words is "one hundred two billion, three hundred forty-five million, four hundred forty-five thousand, two hundred twelve".