1210342555340 has 12 divisors (see below), whose sum is σ = 2541719366256. Its totient is φ = 484137022128.

The previous prime is 1210342555337. The next prime is 1210342555343. The reversal of 1210342555340 is 435552430121.

It is an interprime number because it is at equal distance from previous prime (1210342555337) and next prime (1210342555343).

It is a self number, because there is not a number n which added to its sum of digits gives 1210342555340.

It is not an unprimeable number, because it can be changed into a prime (1210342555343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30258563864 + ... + 30258563903.

It is an arithmetic number, because the mean of its divisors is an integer number (211809947188).

Almost surely, 2^{1210342555340} is an apocalyptic number.

1210342555340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210342555340 is an abundant number, since it is smaller than the sum of its proper divisors (1331376810916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210342555340 is a wasteful number, since it uses less digits than its factorization.

1210342555340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60517127776 (or 60517127774 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 1210342555340 its reverse (435552430121), we get a palindrome (1645894985461).

The spelling of 1210342555340 in words is "one trillion, two hundred ten billion, three hundred forty-two million, five hundred fifty-five thousand, three hundred forty".