2021331121430 has 16 divisors (see below), whose sum is σ = 3639123351504. Its totient is φ = 808370819040.

The previous prime is 2021331121429. The next prime is 2021331121463. The reversal of 2021331121430 is 341211331202.

It is a super-2 number, since 2×2021331121430² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021331121396 and 2021331121405.

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, 20151161 + ... + 20251220.

It is an arithmetic number, because the mean of its divisors is an integer number (227445209469).

Almost surely, 2^{2021331121430} is an apocalyptic number.

2021331121430 is a deficient number, since it is larger than the sum of its proper divisors (1617792230074).

2021331121430 is a wasteful number, since it uses less digits than its factorization.

2021331121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40407391.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2021331121430 its reverse (341211331202), we get a palindrome (2362542452632).

The spelling of 2021331121430 in words is "two trillion, twenty-one billion, three hundred thirty-one million, one hundred twenty-one thousand, four hundred thirty".