1021203123107 has 2 divisors, whose sum is σ = 1021203123108. Its totient is φ = 1021203123106.

The previous prime is 1021203123103. The next prime is 1021203123211. The reversal of 1021203123107 is 7013213021201.

It is a weak prime.

It is an emirp because it is prime and its reverse (7013213021201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021203123107 - 2² = 1021203123103 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021203123103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510601561553 + 510601561554.

It is an arithmetic number, because the mean of its divisors is an integer number (510601561554).

Almost surely, 2^{1021203123107} is an apocalyptic number.

1021203123107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021203123107 is an equidigital number, since it uses as much as digits as its factorization.

1021203123107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 1021203123107 its reverse (7013213021201), we get a palindrome (8034416144308).

The spelling of 1021203123107 in words is "one trillion, twenty-one billion, two hundred three million, one hundred twenty-three thousand, one hundred seven".