131222304231442 has 16 divisors (see below), whose sum is σ = 197081597708352. Its totient is φ = 65528445592080.

The previous prime is 131222304231433. The next prime is 131222304231503. The reversal of 131222304231442 is 244132403222131.

It is a junction number, because it is equal to n+sod(n) for n = 131222304231398 and 131222304231407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34557388 + ... + 38166184.

It is an arithmetic number, because the mean of its divisors is an integer number (12317599856772).

Almost surely, 2^{131222304231442} is an apocalyptic number.

131222304231442 is a deficient number, since it is larger than the sum of its proper divisors (65859293476910).

131222304231442 is a wasteful number, since it uses less digits than its factorization.

131222304231442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631713.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 131222304231442 its reverse (244132403222131), we get a palindrome (375354707453573).

The spelling of 131222304231442 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred four million, two hundred thirty-one thousand, four hundred forty-two".