1231051310126 has 16 divisors (see below), whose sum is σ = 2015847544320. Its totient is φ = 559179903480.

The previous prime is 1231051310119. The next prime is 1231051310129. The reversal of 1231051310126 is 6210131501321.

It is a junction number, because it is equal to n+sod(n) for n = 1231051310095 and 1231051310104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231051310129) 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, 19411316 + ... + 19474631.

It is an arithmetic number, because the mean of its divisors is an integer number (125990471520).

Almost surely, 2^{1231051310126} is an apocalyptic number.

1231051310126 is a deficient number, since it is larger than the sum of its proper divisors (784796234194).

1231051310126 is a wasteful number, since it uses less digits than its factorization.

1231051310126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38887399.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 1231051310126 its reverse (6210131501321), we get a palindrome (7441182811447).

The spelling of 1231051310126 in words is "one trillion, two hundred thirty-one billion, fifty-one million, three hundred ten thousand, one hundred twenty-six".