131122420512445 has 32 divisors (see below), whose sum is σ = 160040839495680. Its totient is φ = 103117729720320.

The previous prime is 131122420512409. The next prime is 131122420512451. The reversal of 131122420512445 is 544215024221131.

It is not a de Polignac number, because 131122420512445 - 2¹⁷ = 131122420381373 is a prime.

It is a super-2 number, since 2×131122420512445² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223510905 + ... + 224096785.

It is an arithmetic number, because the mean of its divisors is an integer number (5001276234240).

Almost surely, 2^{131122420512445} is an apocalyptic number.

It is an amenable number.

131122420512445 is a deficient number, since it is larger than the sum of its proper divisors (28918418983235).

131122420512445 is a wasteful number, since it uses less digits than its factorization.

131122420512445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589245.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 131122420512445 its reverse (544215024221131), we get a palindrome (675337444733576).

The spelling of 131122420512445 in words is "one hundred thirty-one trillion, one hundred twenty-two billion, four hundred twenty million, five hundred twelve thousand, four hundred forty-five".