100210221523 has 2 divisors, whose sum is σ = 100210221524. Its totient is φ = 100210221522.

The previous prime is 100210221493. The next prime is 100210221533. The reversal of 100210221523 is 325122012001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100210221523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100210221523.

It is not a weakly prime, because it can be changed into another prime (100210221533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105110761 + 50105110762.

It is an arithmetic number, because the mean of its divisors is an integer number (50105110762).

Almost surely, 2^100210221523 is an apocalyptic number.

100210221523 is a deficient number, since it is larger than the sum of its proper divisors (1).

100210221523 is an equidigital number, since it uses as much as digits as its factorization.

100210221523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 100210221523 its reverse (325122012001), we get a palindrome (425332233524).

The spelling of 100210221523 in words is "one hundred billion, two hundred ten million, two hundred twenty-one thousand, five hundred twenty-three".