102001113323021 has 16 divisors (see below), whose sum is σ = 116577803286528. Its totient is φ = 88397690871600.

The previous prime is 102001113323009. The next prime is 102001113323051. The reversal of 102001113323021 is 120323311100201.

It is a happy number.

It is not a de Polignac number, because 102001113323021 - 2³⁰ = 102000039581197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102001113322984 and 102001113323002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001113323051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2232242075 + ... + 2232287768.

It is an arithmetic number, because the mean of its divisors is an integer number (7286112705408).

Almost surely, 2^{102001113323021} is an apocalyptic number.

102001113323021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102001113323021 is a deficient number, since it is larger than the sum of its proper divisors (14576689963507).

102001113323021 is a wasteful number, since it uses less digits than its factorization.

102001113323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464529952.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 102001113323021 its reverse (120323311100201), we get a palindrome (222324424423222).

The spelling of 102001113323021 in words is "one hundred two trillion, one billion, one hundred thirteen million, three hundred twenty-three thousand, twenty-one".