203431130220041 has 4 divisors (see below), whose sum is σ = 203573489304900. Its totient is φ = 203288771135184.

The previous prime is 203431130220029. The next prime is 203431130220151. The reversal of 203431130220041 is 140022031134302.

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 46821448464400 + 156609681755641 = 6842620^2 + 12514379^2 .

It is a cyclic number.

It is not a de Polignac number, because 203431130220041 - 2³⁸ = 203156252313097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203431130220001) 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, 71179540286 + ... + 71179543143.

It is an arithmetic number, because the mean of its divisors is an integer number (50893372326225).

Almost surely, 2^{203431130220041} is an apocalyptic number.

It is an amenable number.

203431130220041 is a deficient number, since it is larger than the sum of its proper divisors (142359084859).

203431130220041 is a wasteful number, since it uses less digits than its factorization.

203431130220041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142359084858.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 203431130220041 its reverse (140022031134302), we get a palindrome (343453161354343).

The spelling of 203431130220041 in words is "two hundred three trillion, four hundred thirty-one billion, one hundred thirty million, two hundred twenty thousand, forty-one".