1021240131445 has 8 divisors (see below), whose sum is σ = 1251562374144. Its totient is φ = 799609294224.

The previous prime is 1021240131437. The next prime is 1021240131467. The reversal of 1021240131445 is 5441310421201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1021240131445 - 2³ = 1021240131437 is a prime.

It is a Duffinian number.

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, 2172851109 + ... + 2172851578.

It is an arithmetic number, because the mean of its divisors is an integer number (156445296768).

Almost surely, 2^{1021240131445} is an apocalyptic number.

It is an amenable number.

1021240131445 is a deficient number, since it is larger than the sum of its proper divisors (230322242699).

1021240131445 is an equidigital number, since it uses as much as digits as its factorization.

1021240131445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345702739.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1021240131445 its reverse (5441310421201), we get a palindrome (6462550552646).

The spelling of 1021240131445 in words is "one trillion, twenty-one billion, two hundred forty million, one hundred thirty-one thousand, four hundred forty-five".