2401351323021 has 24 divisors (see below), whose sum is σ = 3965181030720. Its totient is φ = 1371838847616.

The previous prime is 2401351323001. The next prime is 2401351323023. The reversal of 2401351323021 is 1203231531042.

2401351323021 is a `hidden beast` number, since 2 + 4 + 0 + 1 + 351 + 3 + 2 + 302 + 1 = 666.

It is not a de Polignac number, because 2401351323021 - 2¹⁵ = 2401351290253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401351323023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4785651 + ... + 5263568.

It is an arithmetic number, because the mean of its divisors is an integer number (165215876280).

Almost surely, 2^{2401351323021} is an apocalyptic number.

2401351323021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2401351323021 is a deficient number, since it is larger than the sum of its proper divisors (1563829707699).

2401351323021 is a wasteful number, since it uses less digits than its factorization.

2401351323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053025 (or 10053022 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 2401351323021 its reverse (1203231531042), we get a palindrome (3604582854063).

The spelling of 2401351323021 in words is "two trillion, four hundred one billion, three hundred fifty-one million, three hundred twenty-three thousand, twenty-one".