131242031402 has 8 divisors (see below), whose sum is σ = 199234891296. Its totient is φ = 64830400972.

The previous prime is 131242031339. The next prime is 131242031477. The reversal of 131242031402 is 204130242131.

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, 395307158 + ... + 395307489.

It is an arithmetic number, because the mean of its divisors is an integer number (24904361412).

Almost surely, 2^131242031402 is an apocalyptic number.

131242031402 is a deficient number, since it is larger than the sum of its proper divisors (67992859894).

131242031402 is an equidigital number, since it uses as much as digits as its factorization.

131242031402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790614732.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 131242031402 its reverse (204130242131), we get a palindrome (335372273533).

The spelling of 131242031402 in words is "one hundred thirty-one billion, two hundred forty-two million, thirty-one thousand, four hundred two".