1340310762261 has 32 divisors (see below), whose sum is σ = 2034466896000. Its totient is φ = 871624986624.

The previous prime is 1340310762253. The next prime is 1340310762283. The reversal of 1340310762261 is 1622670130431.

1340310762261 is a `hidden beast` number, since 13 + 4 + 0 + 3 + 10 + 7 + 622 + 6 + 1 = 666.

It is not a de Polignac number, because 1340310762261 - 2³ = 1340310762253 is a prime.

It is a super-3 number, since 3×1340310762261³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340310762221) 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 31 ways as a sum of consecutive naturals, for example, 142195 + ... + 1643423.

It is an arithmetic number, because the mean of its divisors is an integer number (63577090500).

Almost surely, 2^{1340310762261} is an apocalyptic number.

It is an amenable number.

1340310762261 is a deficient number, since it is larger than the sum of its proper divisors (694156133739).

1340310762261 is a wasteful number, since it uses less digits than its factorization.

1340310762261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502050 (or 1502044 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

Adding to 1340310762261 its reverse (1622670130431), we get a palindrome (2962980892692).

The spelling of 1340310762261 in words is "one trillion, three hundred forty billion, three hundred ten million, seven hundred sixty-two thousand, two hundred sixty-one".