40003103213 has 4 divisors (see below), whose sum is σ = 40003541148. Its totient is φ = 40002665280.

The previous prime is 40003103167. The next prime is 40003103243. The reversal of 40003103213 is 31230130004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24761225449 + 15241877764 = 157357^2 + 123458^2 .

It is a cyclic number.

It is not a de Polignac number, because 40003103213 - 2⁶ = 40003103149 is a prime.

It is a super-3 number, since 3×40003103213³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40003103191 and 40003103200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40003103243) 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, 24206 + ... + 283887.

It is an arithmetic number, because the mean of its divisors is an integer number (10000885287).

Almost surely, 2^40003103213 is an apocalyptic number.

It is an amenable number.

40003103213 is a deficient number, since it is larger than the sum of its proper divisors (437935).

40003103213 is a wasteful number, since it uses less digits than its factorization.

40003103213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437934.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40003103213 its reverse (31230130004), we get a palindrome (71233233217).

The spelling of 40003103213 in words is "forty billion, three million, one hundred three thousand, two hundred thirteen".