131402230323442 has 32 divisors (see below), whose sum is σ = 213624385793280. Its totient is φ = 60259378152960.

The previous prime is 131402230323439. The next prime is 131402230323473. The reversal of 131402230323442 is 244323032204131.

It is a super-2 number, since 2×131402230323442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131402230323398 and 131402230323407.

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, 5738943 + ... + 17197090.

It is an arithmetic number, because the mean of its divisors is an integer number (6675762056040).

Almost surely, 2^{131402230323442} is an apocalyptic number.

131402230323442 is a deficient number, since it is larger than the sum of its proper divisors (82222155469838).

131402230323442 is a wasteful number, since it uses less digits than its factorization.

131402230323442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22937458.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 131402230323442 its reverse (244323032204131), we get a palindrome (375725262527573).

The spelling of 131402230323442 in words is "one hundred thirty-one trillion, four hundred two billion, two hundred thirty million, three hundred twenty-three thousand, four hundred forty-two".