1031010203123 has 4 divisors (see below), whose sum is σ = 1036770036840. Its totient is φ = 1025250369408.

The previous prime is 1031010203107. The next prime is 1031010203137. The reversal of 1031010203123 is 3213020101301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1031010203123 - 2⁴ = 1031010203107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031010203143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879916590 + ... + 2879916947.

It is an arithmetic number, because the mean of its divisors is an integer number (259192509210).

Almost surely, 2^{1031010203123} is an apocalyptic number.

1031010203123 is a deficient number, since it is larger than the sum of its proper divisors (5759833717).

1031010203123 is an equidigital number, since it uses as much as digits as its factorization.

1031010203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759833716.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1031010203123 its reverse (3213020101301), we get a palindrome (4244030304424).

The spelling of 1031010203123 in words is "one trillion, thirty-one billion, ten million, two hundred three thousand, one hundred twenty-three".