203213131001 has 4 divisors (see below), whose sum is σ = 203630406912. Its totient is φ = 202795855092.

The previous prime is 203213130997. The next prime is 203213131039. The reversal of 203213131001 is 100131312302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203213131001 - 2² = 203213130997 is a prime.

It is a super-2 number, since 2×203213131001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203213131501) 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, 208637225 + ... + 208638198.

It is an arithmetic number, because the mean of its divisors is an integer number (50907601728).

Almost surely, 2^203213131001 is an apocalyptic number.

It is an amenable number.

203213131001 is a deficient number, since it is larger than the sum of its proper divisors (417275911).

203213131001 is an equidigital number, since it uses as much as digits as its factorization.

203213131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417275910.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 203213131001 its reverse (100131312302), we get a palindrome (303344443303).

The spelling of 203213131001 in words is "two hundred three billion, two hundred thirteen million, one hundred thirty-one thousand, one".