101021111123203 has 2 divisors, whose sum is σ = 101021111123204. Its totient is φ = 101021111123202.

The previous prime is 101021111123117. The next prime is 101021111123237. The reversal of 101021111123203 is 302321111120101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101021111123203 - 2⁹ = 101021111122691 is a prime.

It is not a weakly prime, because it can be changed into another prime (101021111127203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510555561601 + 50510555561602.

It is an arithmetic number, because the mean of its divisors is an integer number (50510555561602).

Almost surely, 2^{101021111123203} is an apocalyptic number.

101021111123203 is a deficient number, since it is larger than the sum of its proper divisors (1).

101021111123203 is an equidigital number, since it uses as much as digits as its factorization.

101021111123203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 101021111123203 its reverse (302321111120101), we get a palindrome (403342222243304).

The spelling of 101021111123203 in words is "one hundred one trillion, twenty-one billion, one hundred eleven million, one hundred twenty-three thousand, two hundred three".