203131133001313 has 16 divisors (see below), whose sum is σ = 233400559991040. Its totient is φ = 174840526803600.

The previous prime is 203131133001263. The next prime is 203131133001319. The reversal of 203131133001313 is 313100331131302.

It is a cyclic number.

It is not a de Polignac number, because 203131133001313 - 2¹⁷ = 203131132870241 is a prime.

It is a super-2 number, since 2×203131133001313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203131133001319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291169083 + ... + 291865888.

It is an arithmetic number, because the mean of its divisors is an integer number (14587534999440).

Almost surely, 2^{203131133001313} is an apocalyptic number.

It is an amenable number.

203131133001313 is a deficient number, since it is larger than the sum of its proper divisors (30269426989727).

203131133001313 is a wasteful number, since it uses less digits than its factorization.

203131133001313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583036668.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 203131133001313 its reverse (313100331131302), we get a palindrome (516231464132615).

The spelling of 203131133001313 in words is "two hundred three trillion, one hundred thirty-one billion, one hundred thirty-three million, one thousand, three hundred thirteen".