203442440413 has 8 divisors (see below), whose sum is σ = 206398463040. Its totient is φ = 200501310240.

The previous prime is 203442440387. The next prime is 203442440417. The reversal of 203442440413 is 314044244302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203442440413 - 2²¹ = 203440343261 is a prime.

It is a super-2 number, since 2×203442440413² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203442440417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3695593 + ... + 3750238.

It is an arithmetic number, because the mean of its divisors is an integer number (25799807880).

Almost surely, 2^203442440413 is an apocalyptic number.

It is an amenable number.

203442440413 is a deficient number, since it is larger than the sum of its proper divisors (2956022627).

203442440413 is an equidigital number, since it uses as much as digits as its factorization.

203442440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446227.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 203442440413 its reverse (314044244302), we get a palindrome (517486684715).

The spelling of 203442440413 in words is "two hundred three billion, four hundred forty-two million, four hundred forty thousand, four hundred thirteen".