203213231131 has 2 divisors, whose sum is σ = 203213231132. Its totient is φ = 203213231130.

The previous prime is 203213231087. The next prime is 203213231141. The reversal of 203213231131 is 131132312302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203213231131 - 2⁷ = 203213231003 is a prime.

It is a super-3 number, since 3×203213231131³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (203213231141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101606615565 + 101606615566.

It is an arithmetic number, because the mean of its divisors is an integer number (101606615566).

Almost surely, 2^203213231131 is an apocalyptic number.

203213231131 is a deficient number, since it is larger than the sum of its proper divisors (1).

203213231131 is an equidigital number, since it uses as much as digits as its factorization.

203213231131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203213231131 its reverse (131132312302), we get a palindrome (334345543433).

The spelling of 203213231131 in words is "two hundred three billion, two hundred thirteen million, two hundred thirty-one thousand, one hundred thirty-one".