2021304140121 has 8 divisors (see below), whose sum is σ = 3080082499264. Its totient is φ = 1155030937200.

The previous prime is 2021304140101. The next prime is 2021304140131. The reversal of 2021304140121 is 1210414031202.

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

It is a de Polignac number, because none of the positive numbers 2^k-2021304140121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 96252578101 = 2021304140121 / (2 + 0 + 2 + 1 + 3 + 0 + 4 + 1 + 4 + 0 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021304140101) 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, 48126289030 + ... + 48126289071.

It is an arithmetic number, because the mean of its divisors is an integer number (385010312408).

Almost surely, 2^{2021304140121} is an apocalyptic number.

2021304140121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2021304140121 is a deficient number, since it is larger than the sum of its proper divisors (1058778359143).

2021304140121 is an equidigital number, since it uses as much as digits as its factorization.

2021304140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96252578111.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2021304140121 its reverse (1210414031202), we get a palindrome (3231718171323).

The spelling of 2021304140121 in words is "two trillion, twenty-one billion, three hundred four million, one hundred forty thousand, one hundred twenty-one".