202111005454213 has 4 divisors (see below), whose sum is σ = 202111347724768. Its totient is φ = 202110663183660.

The previous prime is 202111005454201. The next prime is 202111005454229. The reversal of 202111005454213 is 312454500111202.

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-202111005454213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111005434213) 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, 170247993 + ... + 171431038.

It is an arithmetic number, because the mean of its divisors is an integer number (50527836931192).

Almost surely, 2^{202111005454213} is an apocalyptic number.

It is an amenable number.

202111005454213 is a deficient number, since it is larger than the sum of its proper divisors (342270555).

202111005454213 is an equidigital number, since it uses as much as digits as its factorization.

202111005454213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342270554.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 202111005454213 its reverse (312454500111202), we get a palindrome (514565505565415).

The spelling of 202111005454213 in words is "two hundred two trillion, one hundred eleven billion, five million, four hundred fifty-four thousand, two hundred thirteen".