203023211131 has 16 divisors (see below), whose sum is σ = 219375520000. Its totient is φ = 186776368128.

The previous prime is 203023211123. The next prime is 203023211147. The reversal of 203023211131 is 131112320302.

203023211131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 203023211131 - 2³ = 203023211123 is a prime.

It is a super-2 number, since 2×203023211131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203023211099 and 203023211108.

It is not an unprimeable number, because it can be changed into a prime (203023811131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13350070 + ... + 13365268.

It is an arithmetic number, because the mean of its divisors is an integer number (13710970000).

Almost surely, 2^203023211131 is an apocalyptic number.

203023211131 is a deficient number, since it is larger than the sum of its proper divisors (16352308869).

203023211131 is a wasteful number, since it uses less digits than its factorization.

203023211131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18598.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 203023211131 its reverse (131112320302), we get a palindrome (334135531433).

The spelling of 203023211131 in words is "two hundred three billion, twenty-three million, two hundred eleven thousand, one hundred thirty-one".