1010131120123 has 4 divisors (see below), whose sum is σ = 1010354951608. Its totient is φ = 1009907288640.

The previous prime is 1010131120121. The next prime is 1010131120127. The reversal of 1010131120123 is 3210211310101.

It is a happy number.

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 1010131120123 - 2¹ = 1010131120121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010131120097 and 1010131120106.

It is not an unprimeable number, because it can be changed into a prime (1010131120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111908973 + ... + 111917998.

It is an arithmetic number, because the mean of its divisors is an integer number (252588737902).

Almost surely, 2^{1010131120123} is an apocalyptic number.

1010131120123 is a deficient number, since it is larger than the sum of its proper divisors (223831485).

1010131120123 is an equidigital number, since it uses as much as digits as its factorization.

1010131120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223831484.

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

Adding to 1010131120123 its reverse (3210211310101), we get a palindrome (4220342430224).

The spelling of 1010131120123 in words is "one trillion, ten billion, one hundred thirty-one million, one hundred twenty thousand, one hundred twenty-three".