90021055343 has 4 divisors (see below), whose sum is σ = 90021660120. Its totient is φ = 90020450568.

The previous prime is 90021055331. The next prime is 90021055409. The reversal of 90021055343 is 34355012009.

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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90021055343 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 (90024055343) 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, 94721 + ... + 434757.

It is an arithmetic number, because the mean of its divisors is an integer number (22505415030).

Almost surely, 2^90021055343 is an apocalyptic number.

90021055343 is a deficient number, since it is larger than the sum of its proper divisors (604777).

90021055343 is a wasteful number, since it uses less digits than its factorization.

90021055343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604776.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 90021055343 in words is "ninety billion, twenty-one million, fifty-five thousand, three hundred forty-three".