2120401423443 has 8 divisors (see below), whose sum is σ = 2875120574400. Its totient is φ = 1389641610728.

The previous prime is 2120401423379. The next prime is 2120401423493. The reversal of 2120401423443 is 3443241040212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120401423443 - 2⁶ = 2120401423379 is a prime.

It is a super-2 number, since 2×2120401423443² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120401423443.

It is not an unprimeable number, because it can be changed into a prime (2120401423493) 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, 5989834353 + ... + 5989834706.

It is an arithmetic number, because the mean of its divisors is an integer number (359390071800).

Almost surely, 2^{2120401423443} is an apocalyptic number.

2120401423443 is a deficient number, since it is larger than the sum of its proper divisors (754719150957).

2120401423443 is a wasteful number, since it uses less digits than its factorization.

2120401423443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979669121.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2120401423443 its reverse (3443241040212), we get a palindrome (5563642463655).

The spelling of 2120401423443 in words is "two trillion, one hundred twenty billion, four hundred one million, four hundred twenty-three thousand, four hundred forty-three".