131021424445 has 8 divisors (see below), whose sum is σ = 157227838560. Its totient is φ = 104815720080.

The previous prime is 131021424419. The next prime is 131021424463. The reversal of 131021424445 is 544424120131.

It is a happy number.

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

It is not a de Polignac number, because 131021424445 - 2⁹ = 131021423933 is a prime.

It is a super-2 number, since 2×131021424445² (a number of 23 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 7 ways as a sum of consecutive naturals, for example, 398850 + ... + 648940.

It is an arithmetic number, because the mean of its divisors is an integer number (19653479820).

Almost surely, 2^131021424445 is an apocalyptic number.

It is an amenable number.

131021424445 is a deficient number, since it is larger than the sum of its proper divisors (26206414115).

131021424445 is a wasteful number, since it uses less digits than its factorization.

131021424445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354875.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 131021424445 its reverse (544424120131), we get a palindrome (675445544576).

The spelling of 131021424445 in words is "one hundred thirty-one billion, twenty-one million, four hundred twenty-four thousand, four hundred forty-five".