401202025243 has 4 divisors (see below), whose sum is σ = 407190115240. Its totient is φ = 395213935248.

The previous prime is 401202025219. The next prime is 401202025247. The reversal of 401202025243 is 342520202104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401202025243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401202025247) 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, 2994044898 + ... + 2994045031.

It is an arithmetic number, because the mean of its divisors is an integer number (101797528810).

Almost surely, 2^401202025243 is an apocalyptic number.

401202025243 is a deficient number, since it is larger than the sum of its proper divisors (5988089997).

401202025243 is an equidigital number, since it uses as much as digits as its factorization.

401202025243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988089996.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 401202025243 its reverse (342520202104), we get a palindrome (743722227347).

The spelling of 401202025243 in words is "four hundred one billion, two hundred two million, twenty-five thousand, two hundred forty-three".