203313212131213 has 4 divisors (see below), whose sum is σ = 214013907506560. Its totient is φ = 192612516755868.

The previous prime is 203313212131153. The next prime is 203313212131261. The reversal of 203313212131213 is 312131212313302.

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 a de Polignac number, because none of the positive numbers 2^k-203313212131213 is a prime.

It is a super-2 number, since 2×203313212131213² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203313212135213) 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, 5350347687645 + ... + 5350347687682.

It is an arithmetic number, because the mean of its divisors is an integer number (53503476876640).

Almost surely, 2^{203313212131213} is an apocalyptic number.

It is an amenable number.

203313212131213 is a deficient number, since it is larger than the sum of its proper divisors (10700695375347).

203313212131213 is a wasteful number, since it uses less digits than its factorization.

203313212131213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10700695375346.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 203313212131213 its reverse (312131212313302), we get a palindrome (515444424444515).

The spelling of 203313212131213 in words is "two hundred three trillion, three hundred thirteen billion, two hundred twelve million, one hundred thirty-one thousand, two hundred thirteen".