1243121242410 has 48 divisors (see below), whose sum is σ = 3372641985024. Its totient is φ = 317085997536.

The previous prime is 1243121242399. The next prime is 1243121242411. The reversal of 1243121242410 is 142421213421.

1243121242410 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 1 + 2 + 1 + 242 + 410 = 666.

It is not an unprimeable number, because it can be changed into a prime (1243121242411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300268762 + ... + 300272901.

It is an arithmetic number, because the mean of its divisors is an integer number (70263374688).

Almost surely, 2^{1243121242410} is an apocalyptic number.

1243121242410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243121242410 is an abundant number, since it is smaller than the sum of its proper divisors (2129520742614).

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

1243121242410 is a wasteful number, since it uses less digits than its factorization.

1243121242410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600541699 (or 600541696 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1243121242410 its reverse (142421213421), we get a palindrome (1385542455831).

The spelling of 1243121242410 in words is "one trillion, two hundred forty-three billion, one hundred twenty-one million, two hundred forty-two thousand, four hundred ten".