1612121300343 has 20 divisors (see below), whose sum is σ = 2491273022040. Its totient is φ = 1037687272272.

The previous prime is 1612121300341. The next prime is 1612121300369. The reversal of 1612121300343 is 3430031212161.

It is a happy number.

1612121300343 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 12 + 1 + 300 + 343 = 666.

It is not a de Polignac number, because 1612121300343 - 2¹ = 1612121300341 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612121300341) 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, 343148205 + ... + 343152902.

It is an arithmetic number, because the mean of its divisors is an integer number (124563651102).

Almost surely, 2^{1612121300343} is an apocalyptic number.

1612121300343 is a deficient number, since it is larger than the sum of its proper divisors (879151721697).

1612121300343 is an equidigital number, since it uses as much as digits as its factorization.

1612121300343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686301148 (or 686301139 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 1612121300343 in words is "one trillion, six hundred twelve billion, one hundred twenty-one million, three hundred thousand, three hundred forty-three".