203404131413131 has 4 divisors (see below), whose sum is σ = 221895416087064. Its totient is φ = 184912846739200.

The previous prime is 203404131413123. The next prime is 203404131413143. The reversal of 203404131413131 is 131314131404302.

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

It is a cyclic number.

It is not a de Polignac number, because 203404131413131 - 2³ = 203404131413123 is a prime.

It is a super-2 number, since 2×203404131413131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203404131413093 and 203404131413102.

It is not an unprimeable number, because it can be changed into a prime (203404131413191) 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, 9245642336950 + ... + 9245642336971.

It is an arithmetic number, because the mean of its divisors is an integer number (55473854021766).

Almost surely, 2^{203404131413131} is an apocalyptic number.

203404131413131 is a deficient number, since it is larger than the sum of its proper divisors (18491284673933).

203404131413131 is a wasteful number, since it uses less digits than its factorization.

203404131413131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18491284673932.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 203404131413131 its reverse (131314131404302), we get a palindrome (334718262817433).

The spelling of 203404131413131 in words is "two hundred three trillion, four hundred four billion, one hundred thirty-one million, four hundred thirteen thousand, one hundred thirty-one".