2021703357703 has 2 divisors, whose sum is σ = 2021703357704. Its totient is φ = 2021703357702.

The previous prime is 2021703357689. The next prime is 2021703357719. The reversal of 2021703357703 is 3077533071202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021703357703 - 2⁵ = 2021703357671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021703357503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010851678851 + 1010851678852.

It is an arithmetic number, because the mean of its divisors is an integer number (1010851678852).

Almost surely, 2^{2021703357703} is an apocalyptic number.

2021703357703 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021703357703 is an equidigital number, since it uses as much as digits as its factorization.

2021703357703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 185220, while the sum is 40.

The spelling of 2021703357703 in words is "two trillion, twenty-one billion, seven hundred three million, three hundred fifty-seven thousand, seven hundred three".