1342103243121 has 20 divisors (see below), whose sum is σ = 2004978046500. Its totient is φ = 894687399936.

The previous prime is 1342103243059. The next prime is 1342103243167. The reversal of 1342103243121 is 1213423012431.

1342103243121 is a `hidden beast` number, since 1 + 3 + 4 + 21 + 0 + 324 + 312 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1251086990400 + 91016252721 = 1118520^2 + 301689^2 .

It is not a de Polignac number, because 1342103243121 - 2⁹ = 1342103242609 is a prime.

It is a super-2 number, since 2×1342103243121² (a number of 25 digits) contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1342103243821) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1103905 + ... + 1975553.

It is an arithmetic number, because the mean of its divisors is an integer number (100248902325).

Almost surely, 2^{1342103243121} is an apocalyptic number.

It is an amenable number.

1342103243121 is a deficient number, since it is larger than the sum of its proper divisors (662874803379).

1342103243121 is an equidigital number, since it uses as much as digits as its factorization.

1342103243121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890670 (or 890661 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1342103243121 its reverse (1213423012431), we get a palindrome (2555526255552).

The spelling of 1342103243121 in words is "one trillion, three hundred forty-two billion, one hundred three million, two hundred forty-three thousand, one hundred twenty-one".