131233011345442 has 8 divisors (see below), whose sum is σ = 197168559997356. Its totient is φ = 65510158012992.

The previous prime is 131233011345433. The next prime is 131233011345463. The reversal of 131233011345442 is 244543110332131.

It can be written as a sum of positive squares in 2 ways, for example, as 107489016671481 + 23743994673961 = 10367691^2 + 4872781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 53173828323 + ... + 53173830790.

Almost surely, 2^{131233011345442} is an apocalyptic number.

131233011345442 is a deficient number, since it is larger than the sum of its proper divisors (65935548651914).

131233011345442 is a wasteful number, since it uses less digits than its factorization.

131233011345442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106347659732.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 131233011345442 its reverse (244543110332131), we get a palindrome (375776121677573).

The spelling of 131233011345442 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, eleven million, three hundred forty-five thousand, four hundred forty-two".