1242123042010 has 16 divisors (see below), whose sum is σ = 2283392146176. Its totient is φ = 486277956688.

The previous prime is 1242123041989. The next prime is 1242123042011. The reversal of 1242123042010 is 102403212421.

It is not an unprimeable number, because it can be changed into a prime (1242123042011) 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, 1321407022 + ... + 1321407961.

It is an arithmetic number, because the mean of its divisors is an integer number (142712009136).

Almost surely, 2^{1242123042010} is an apocalyptic number.

1242123042010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242123042010 is a deficient number, since it is larger than the sum of its proper divisors (1041269104166).

1242123042010 is a wasteful number, since it uses less digits than its factorization.

1242123042010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642815037.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1242123042010 its reverse (102403212421), we get a palindrome (1344526254431).

The spelling of 1242123042010 in words is "one trillion, two hundred forty-two billion, one hundred twenty-three million, forty-two thousand, ten".