1031010020123 has 4 divisors (see below), whose sum is σ = 1058875155840. Its totient is φ = 1003144884408.

The previous prime is 1031010020087. The next prime is 1031010020153. The reversal of 1031010020123 is 3210200101301.

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 1031010020123 - 2⁸ = 1031010019867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031010020098 and 1031010020107.

It is not an unprimeable number, because it can be changed into a prime (1031010020153) 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, 13932567803 + ... + 13932567876.

It is an arithmetic number, because the mean of its divisors is an integer number (264718788960).

Almost surely, 2^{1031010020123} is an apocalyptic number.

1031010020123 is a deficient number, since it is larger than the sum of its proper divisors (27865135717).

1031010020123 is an equidigital number, since it uses as much as digits as its factorization.

1031010020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27865135716.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1031010020123 its reverse (3210200101301), we get a palindrome (4241210121424).

The spelling of 1031010020123 in words is "one trillion, thirty-one billion, ten million, twenty thousand, one hundred twenty-three".