20203442413 has 32 divisors (see below), whose sum is σ = 26684916480. Its totient is φ = 14808821760.

The previous prime is 20203442359. The next prime is 20203442429. The reversal of 20203442413 is 31424430202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20203442413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203442453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3548473 + ... + 3554161.

It is an arithmetic number, because the mean of its divisors is an integer number (833903640).

Almost surely, 2^20203442413 is an apocalyptic number.

It is an amenable number.

20203442413 is a deficient number, since it is larger than the sum of its proper divisors (6481474067).

20203442413 is a wasteful number, since it uses less digits than its factorization.

20203442413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8437.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20203442413 its reverse (31424430202), we get a palindrome (51627872615).

The spelling of 20203442413 in words is "twenty billion, two hundred three million, four hundred forty-two thousand, four hundred thirteen".