1821700351213 has 8 divisors (see below), whose sum is σ = 1928901461760. Its totient is φ = 1714503936960.

The previous prime is 1821700351129. The next prime is 1821700351259. The reversal of 1821700351213 is 3121530071281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1821700351213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1821700351813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359283 + ... + 1942288.

It is an arithmetic number, because the mean of its divisors is an integer number (241112682720).

Almost surely, 2^{1821700351213} is an apocalyptic number.

It is an amenable number.

1821700351213 is a deficient number, since it is larger than the sum of its proper divisors (107201110547).

1821700351213 is a wasteful number, since it uses less digits than its factorization.

1821700351213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348147.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 1821700351213 in words is "one trillion, eight hundred twenty-one billion, seven hundred million, three hundred fifty-one thousand, two hundred thirteen".