20331042350213 has 24 divisors (see below), whose sum is σ = 24038812589400. Its totient is φ = 17140422942720.

The previous prime is 20331042350209. The next prime is 20331042350257. The reversal of 20331042350213 is 31205324013302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 142492660324 + 20188549689889 = 377482^2 + 4493167^2 .

It is not a de Polignac number, because 20331042350213 - 2² = 20331042350209 is a prime.

It is a super-2 number, since 2×20331042350213² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331042353213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130388945 + ... + 130544777.

It is an arithmetic number, because the mean of its divisors is an integer number (1001617191225).

Almost surely, 2^{20331042350213} is an apocalyptic number.

It is an amenable number.

20331042350213 is a deficient number, since it is larger than the sum of its proper divisors (3707770239187).

20331042350213 is a wasteful number, since it uses less digits than its factorization.

20331042350213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199557 (or 199550 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 20331042350213 its reverse (31205324013302), we get a palindrome (51536366363515).

The spelling of 20331042350213 in words is "twenty trillion, three hundred thirty-one billion, forty-two million, three hundred fifty thousand, two hundred thirteen".