2021023114440 has 64 divisors (see below), whose sum is σ = 6614257469760. Its totient is φ = 489944997120.

The previous prime is 2021023114373. The next prime is 2021023114447. The reversal of 2021023114440 is 444113201202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2021023114440.

It is not an unprimeable number, because it can be changed into a prime (2021023114447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765537739 + ... + 765540378.

It is an arithmetic number, because the mean of its divisors is an integer number (103347772965).

Almost surely, 2^{2021023114440} is an apocalyptic number.

2021023114440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021023114440 is an abundant number, since it is smaller than the sum of its proper divisors (4593234355320).

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

2021023114440 is a wasteful number, since it uses less digits than its factorization.

2021023114440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531078142 (or 1531078138 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2021023114440 its reverse (444113201202), we get a palindrome (2465136315642).

The spelling of 2021023114440 in words is "two trillion, twenty-one billion, twenty-three million, one hundred fourteen thousand, four hundred forty".