2401155421321 has 4 divisors (see below), whose sum is σ = 2402398900944. Its totient is φ = 2399911941700.

The previous prime is 2401155421303. The next prime is 2401155421421. The reversal of 2401155421321 is 1231245511042.

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 2401155421321 - 2⁵ = 2401155421289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2401155421421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621736915 + ... + 621740776.

It is an arithmetic number, because the mean of its divisors is an integer number (600599725236).

Almost surely, 2^{2401155421321} is an apocalyptic number.

It is an amenable number.

2401155421321 is a deficient number, since it is larger than the sum of its proper divisors (1243479623).

2401155421321 is a wasteful number, since it uses less digits than its factorization.

2401155421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243479622.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 2401155421321 in words is "two trillion, four hundred one billion, one hundred fifty-five million, four hundred twenty-one thousand, three hundred twenty-one".