1020440004132 has 24 divisors (see below), whose sum is σ = 2521087069536. Its totient is φ = 320138040448.

The previous prime is 1020440004131. The next prime is 1020440004137. The reversal of 1020440004132 is 2314000440201.

It is a junction number, because it is equal to n+sod(n) for n = 1020440004099 and 1020440004108.

It is not an unprimeable number, because it can be changed into a prime (1020440004131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501078238 + ... + 2501078645.

It is an arithmetic number, because the mean of its divisors is an integer number (105045294564).

Almost surely, 2^{1020440004132} is an apocalyptic number.

1020440004132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020440004132 is an abundant number, since it is smaller than the sum of its proper divisors (1500647065404).

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

1020440004132 is a wasteful number, since it uses less digits than its factorization.

1020440004132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002156907 (or 5002156905 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1020440004132 its reverse (2314000440201), we get a palindrome (3334440444333).

The spelling of 1020440004132 in words is "one trillion, twenty billion, four hundred forty million, four thousand, one hundred thirty-two".