240021030401 has 4 divisors (see below), whose sum is σ = 240026898900. Its totient is φ = 240015161904.

The previous prime is 240021030367. The next prime is 240021030419. The reversal of 240021030401 is 104030120042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99713850625 + 140307179776 = 315775^2 + 374576^2 .

It is a cyclic number.

It is not a de Polignac number, because 240021030401 - 2¹⁴ = 240021014017 is a prime.

It is a super-2 number, since 2×240021030401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240021030401.

It is not an unprimeable number, because it can be changed into a prime (240021033401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872466 + ... + 2954843.

It is an arithmetic number, because the mean of its divisors is an integer number (60006724725).

Almost surely, 2^240021030401 is an apocalyptic number.

It is an amenable number.

240021030401 is a deficient number, since it is larger than the sum of its proper divisors (5868499).

240021030401 is an equidigital number, since it uses as much as digits as its factorization.

240021030401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868498.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 240021030401 its reverse (104030120042), we get a palindrome (344051150443).

The spelling of 240021030401 in words is "two hundred forty billion, twenty-one million, thirty thousand, four hundred one".