2043401224861 has 2 divisors, whose sum is σ = 2043401224862. Its totient is φ = 2043401224860.

The previous prime is 2043401224841. The next prime is 2043401224871. The reversal of 2043401224861 is 1684221043402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1687905049636 + 355496175225 = 1299194^2 + 596235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043401224861 - 2¹¹ = 2043401222813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2043401224861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043401224801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021700612430 + 1021700612431.

It is an arithmetic number, because the mean of its divisors is an integer number (1021700612431).

Almost surely, 2^{2043401224861} is an apocalyptic number.

It is an amenable number.

2043401224861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043401224861 is an equidigital number, since it uses as much as digits as its factorization.

2043401224861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 2043401224861 in words is "two trillion, forty-three billion, four hundred one million, two hundred twenty-four thousand, eight hundred sixty-one".