1020123115303 has 2 divisors, whose sum is σ = 1020123115304. Its totient is φ = 1020123115302.

The previous prime is 1020123115261. The next prime is 1020123115327. The reversal of 1020123115303 is 3035113210201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020123115303 - 2²¹ = 1020121018151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020123115373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510061557651 + 510061557652.

It is an arithmetic number, because the mean of its divisors is an integer number (510061557652).

Almost surely, 2^{1020123115303} is an apocalyptic number.

1020123115303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020123115303 is an equidigital number, since it uses as much as digits as its factorization.

1020123115303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 1020123115303 its reverse (3035113210201), we get a palindrome (4055236325504).

The spelling of 1020123115303 in words is "one trillion, twenty billion, one hundred twenty-three million, one hundred fifteen thousand, three hundred three".