102140243210 has 24 divisors (see below), whose sum is σ = 184537325196. Its totient is φ = 40703949440.

The previous prime is 102140243207. The next prime is 102140243239. The reversal of 102140243210 is 12342041201.

It can be written as a sum of positive squares in 6 ways, for example, as 96395967529 + 5744275681 = 310477^2 + 75791^2 .

It is a super-2 number, since 2×102140243210² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16938476 + ... + 16944504.

Almost surely, 2^102140243210 is an apocalyptic number.

102140243210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102140243210 is a deficient number, since it is larger than the sum of its proper divisors (82397081986).

102140243210 is an frugal number, since it uses more digits than its factorization.

102140243210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12346 (or 6317 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102140243210 its reverse (12342041201), we get a palindrome (114482284411).

The spelling of 102140243210 in words is "one hundred two billion, one hundred forty million, two hundred forty-three thousand, two hundred ten".