131026123426 has 16 divisors (see below), whose sum is σ = 216815447520. Its totient is φ = 58888144480.

The previous prime is 131026123409. The next prime is 131026123439. The reversal of 131026123426 is 624321620131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33457216 + ... + 33461131.

It is an arithmetic number, because the mean of its divisors is an integer number (13550965470).

Almost surely, 2^131026123426 is an apocalyptic number.

131026123426 is a deficient number, since it is larger than the sum of its proper divisors (85789324094).

131026123426 is a wasteful number, since it uses less digits than its factorization.

131026123426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66918449.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 131026123426 its reverse (624321620131), we get a palindrome (755347743557).

It can be divided in two parts, 131026 and 123426, that added together give a palindrome (254452).

The spelling of 131026123426 in words is "one hundred thirty-one billion, twenty-six million, one hundred twenty-three thousand, four hundred twenty-six".