200011311133421 has 2 divisors, whose sum is σ = 200011311133422. Its totient is φ = 200011311133420.

The previous prime is 200011311133391. The next prime is 200011311133471. The reversal of 200011311133421 is 124331113110002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162444966252100 + 37566344881321 = 12745390^2 + 6129139^2 .

It is a cyclic number.

It is not a de Polignac number, because 200011311133421 - 2⁴² = 195613264622317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200011311133471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100005655566710 + 100005655566711.

It is an arithmetic number, because the mean of its divisors is an integer number (100005655566711).

Almost surely, 2^{200011311133421} is an apocalyptic number.

It is an amenable number.

200011311133421 is a deficient number, since it is larger than the sum of its proper divisors (1).

200011311133421 is an equidigital number, since it uses as much as digits as its factorization.

200011311133421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 200011311133421 its reverse (124331113110002), we get a palindrome (324342424243423).

The spelling of 200011311133421 in words is "two hundred trillion, eleven billion, three hundred eleven million, one hundred thirty-three thousand, four hundred twenty-one".