1340432123121 has 288 divisors, whose sum is σ = 2594627223552. Its totient is φ = 648094487040.

The previous prime is 1340432123119. The next prime is 1340432123131. The reversal of 1340432123121 is 1213212340431.

1340432123121 is a `hidden beast` number, since 1 + 3 + 404 + 3 + 2 + 1 + 231 + 21 = 666.

It is not a de Polignac number, because 1340432123121 - 2¹ = 1340432123119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340432123131) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3025805926 + ... + 3025806368.

It is an arithmetic number, because the mean of its divisors is an integer number (9009122304).

Almost surely, 2^{1340432123121} is an apocalyptic number.

It is an amenable number.

1340432123121 is a deficient number, since it is larger than the sum of its proper divisors (1254195100431).

1340432123121 is a wasteful number, since it uses less digits than its factorization.

1340432123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 709 counting only the distinct ones).

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

Adding to 1340432123121 its reverse (1213212340431), we get a palindrome (2553644463552).

The spelling of 1340432123121 in words is "one trillion, three hundred forty billion, four hundred thirty-two million, one hundred twenty-three thousand, one hundred twenty-one".