2401111243421 has 4 divisors (see below), whose sum is σ = 2619394083744. Its totient is φ = 2182828403100.

The previous prime is 2401111243397. The next prime is 2401111243451. The reversal of 2401111243421 is 1243421111042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2401111243421 - 2³⁰ = 2400037501597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401111243451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109141420145 + ... + 109141420166.

It is an arithmetic number, because the mean of its divisors is an integer number (654848520936).

Almost surely, 2^{2401111243421} is an apocalyptic number.

It is an amenable number.

2401111243421 is a deficient number, since it is larger than the sum of its proper divisors (218282840323).

2401111243421 is a wasteful number, since it uses less digits than its factorization.

2401111243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218282840322.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 2401111243421 its reverse (1243421111042), we get a palindrome (3644532354463).

The spelling of 2401111243421 in words is "two trillion, four hundred one billion, one hundred eleven million, two hundred forty-three thousand, four hundred twenty-one".