1243142203410 has 240 divisors, whose sum is σ = 3445111482120. Its totient is φ = 321638999040.

The previous prime is 1243142203367. The next prime is 1243142203417. The reversal of 1243142203410 is 143022413421.

1243142203410 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 1 + 42 + 203 + 410 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 781532025849 + 461610177561 = 884043^2 + 679419^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1243142203417) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 453534640 + ... + 453537380.

Almost surely, 2^{1243142203410} is an apocalyptic number.

1243142203410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243142203410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1722555741060).

1243142203410 is an abundant number, since it is smaller than the sum of its proper divisors (2201969278710).

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

1243142203410 is a wasteful number, since it uses less digits than its factorization.

1243142203410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1243142203410 its reverse (143022413421), we get a palindrome (1386164616831).

The spelling of 1243142203410 in words is "one trillion, two hundred forty-three billion, one hundred forty-two million, two hundred three thousand, four hundred ten".