21514050121443 has 32 divisors (see below), whose sum is σ = 32769120706560. Its totient is φ = 12427842625440.

The previous prime is 21514050121429. The next prime is 21514050121457. The reversal of 21514050121443 is 34412105041512.

It is an interprime number because it is at equal distance from previous prime (21514050121429) and next prime (21514050121457).

It is not a de Polignac number, because 21514050121443 - 2⁹ = 21514050120931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (21514050121423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49865163 + ... + 50294756.

It is an arithmetic number, because the mean of its divisors is an integer number (1024035022080).

Almost surely, 2^{21514050121443} is an apocalyptic number.

21514050121443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21514050121443 is a deficient number, since it is larger than the sum of its proper divisors (11255070585117).

21514050121443 is a wasteful number, since it uses less digits than its factorization.

21514050121443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100160239.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 21514050121443 its reverse (34412105041512), we get a palindrome (55926155162955).

The spelling of 21514050121443 in words is "twenty-one trillion, five hundred fourteen billion, fifty million, one hundred twenty-one thousand, four hundred forty-three".