1023203112123 has 8 divisors (see below), whose sum is σ = 1364298917200. Its totient is φ = 682121357568.

The previous prime is 1023203112121. The next prime is 1023203112143. The reversal of 1023203112123 is 3212113023201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1023203112123 - 2¹ = 1023203112121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023203112123.

It is not an unprimeable number, because it can be changed into a prime (1023203112121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3341518 + ... + 3634851.

It is an arithmetic number, because the mean of its divisors is an integer number (170537364650).

Almost surely, 2^{1023203112123} is an apocalyptic number.

1023203112123 is a deficient number, since it is larger than the sum of its proper divisors (341095805077).

1023203112123 is an equidigital number, since it uses as much as digits as its factorization.

1023203112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025261.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1023203112123 its reverse (3212113023201), we get a palindrome (4235316135324).

The spelling of 1023203112123 in words is "one trillion, twenty-three billion, two hundred three million, one hundred twelve thousand, one hundred twenty-three".