131122431226 has 32 divisors (see below), whose sum is σ = 206379795456. Its totient is φ = 62403264000.

The previous prime is 131122431211. The next prime is 131122431227. The reversal of 131122431226 is 622134221131.

It is a junction number, because it is equal to n+sod(n) for n = 131122431194 and 131122431203.

It is not an unprimeable number, because it can be changed into a prime (131122431227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1817866 + ... + 1888618.

It is an arithmetic number, because the mean of its divisors is an integer number (6449368608).

Almost surely, 2^131122431226 is an apocalyptic number.

131122431226 is a deficient number, since it is larger than the sum of its proper divisors (75257364230).

131122431226 is a wasteful number, since it uses less digits than its factorization.

131122431226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71278.

The product of its digits is 3456, while the sum is 28.

Adding to 131122431226 its reverse (622134221131), we get a palindrome (753256652357).

The spelling of 131122431226 in words is "one hundred thirty-one billion, one hundred twenty-two million, four hundred thirty-one thousand, two hundred twenty-six".