21112141122430 has 16 divisors (see below), whose sum is σ = 38060954893584. Its totient is φ = 8431722921600.

The previous prime is 21112141122409. The next prime is 21112141122463. The reversal of 21112141122430 is 3422114121112.

It is a junction number, because it is equal to n+sod(n) for n = 21112141122395 and 21112141122404.

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, 1641684171 + ... + 1641697030.

It is an arithmetic number, because the mean of its divisors is an integer number (2378809680849).

Almost surely, 2^{21112141122430} is an apocalyptic number.

21112141122430 is a deficient number, since it is larger than the sum of its proper divisors (16948813771154).

21112141122430 is a wasteful number, since it uses less digits than its factorization.

21112141122430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283381851.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 21112141122430 its reverse (3422114121112), we get a palindrome (24534255243542).

The spelling of 21112141122430 in words is "twenty-one trillion, one hundred twelve billion, one hundred forty-one million, one hundred twenty-two thousand, four hundred thirty".