1020421132144 has 20 divisors (see below), whose sum is σ = 2081122046440. Its totient is φ = 483357378240.

The previous prime is 1020421132069. The next prime is 1020421132151. The reversal of 1020421132144 is 4412311240201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678323927 + ... + 1678324534.

It is an arithmetic number, because the mean of its divisors is an integer number (104056102322).

Almost surely, 2^{1020421132144} is an apocalyptic number.

It is an amenable number.

1020421132144 is an abundant number, since it is smaller than the sum of its proper divisors (1060700914296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020421132144 is a wasteful number, since it uses less digits than its factorization.

1020421132144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356648488 (or 3356648482 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1020421132144 its reverse (4412311240201), we get a palindrome (5432732372345).

The spelling of 1020421132144 in words is "one trillion, twenty billion, four hundred twenty-one million, one hundred thirty-two thousand, one hundred forty-four".