1031100112123 has 2 divisors, whose sum is σ = 1031100112124. Its totient is φ = 1031100112122.

The previous prime is 1031100112103. The next prime is 1031100112127. The reversal of 1031100112123 is 3212110011301.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3212110011301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031100112123 - 2²⁵ = 1031066557691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031100112097 and 1031100112106.

It is not a weakly prime, because it can be changed into another prime (1031100112127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515550056061 + 515550056062.

It is an arithmetic number, because the mean of its divisors is an integer number (515550056062).

Almost surely, 2^{1031100112123} is an apocalyptic number.

1031100112123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031100112123 is an equidigital number, since it uses as much as digits as its factorization.

1031100112123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1031100112123 its reverse (3212110011301), we get a palindrome (4243210123424).

The spelling of 1031100112123 in words is "one trillion, thirty-one billion, one hundred million, one hundred twelve thousand, one hundred twenty-three".