131233421332442 has 32 divisors (see below), whose sum is σ = 231579995189760. Its totient is φ = 54987853878720.

The previous prime is 131233421332379. The next prime is 131233421332487. The reversal of 131233421332442 is 244233124332131.

It is a junction number, because it is equal to n+sod(n) for n = 131233421332396 and 131233421332405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312790442 + ... + 313209717.

It is an arithmetic number, because the mean of its divisors is an integer number (7236874849680).

Almost surely, 2^{131233421332442} is an apocalyptic number.

131233421332442 is a deficient number, since it is larger than the sum of its proper divisors (100346573857318).

131233421332442 is a wasteful number, since it uses less digits than its factorization.

131233421332442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626000918.

The product of its digits is 248832, while the sum is 38.

Adding to 131233421332442 its reverse (244233124332131), we get a palindrome (375466545664573).

The spelling of 131233421332442 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, four hundred twenty-one million, three hundred thirty-two thousand, four hundred forty-two".