1342402122121 has 16 divisors (see below), whose sum is σ = 1470447645840. Its totient is φ = 1219814041600.

The previous prime is 1342402122109. The next prime is 1342402122137. The reversal of 1342402122121 is 1212212042431.

It can be written as a sum of positive squares in 8 ways, for example, as 14523865225 + 1327878256896 = 120515^2 + 1152336^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342402122121 - 2²¹ = 1342400024969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342402122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13607445 + ... + 13705741.

It is an arithmetic number, because the mean of its divisors is an integer number (91902977865).

Almost surely, 2^{1342402122121} is an apocalyptic number.

It is an amenable number.

1342402122121 is a deficient number, since it is larger than the sum of its proper divisors (128045523719).

1342402122121 is a wasteful number, since it uses less digits than its factorization.

1342402122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126044.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1342402122121 its reverse (1212212042431), we get a palindrome (2554614164552).

The spelling of 1342402122121 in words is "one trillion, three hundred forty-two billion, four hundred two million, one hundred twenty-two thousand, one hundred twenty-one".