102043321401021 has 192 divisors, whose sum is σ = 189849076033536. Its totient is φ = 47306030054400.

The previous prime is 102043321401013. The next prime is 102043321401061. The reversal of 102043321401021 is 120104123340201.

It is not a de Polignac number, because 102043321401021 - 2³ = 102043321401013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102043321400982 and 102043321401000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102043321401061) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 226552566 + ... + 227002536.

It is an arithmetic number, because the mean of its divisors is an integer number (988797271008).

Almost surely, 2^{102043321401021} is an apocalyptic number.

102043321401021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102043321401021 is a deficient number, since it is larger than the sum of its proper divisors (87805754632515).

102043321401021 is a wasteful number, since it uses less digits than its factorization.

102043321401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450212 (or 450199 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 102043321401021 its reverse (120104123340201), we get a palindrome (222147444741222).

The spelling of 102043321401021 in words is "one hundred two trillion, forty-three billion, three hundred twenty-one million, four hundred one thousand, twenty-one".