102020012030321 has 8 divisors (see below), whose sum is σ = 127193781232704. Its totient is φ = 79496113270320.

The previous prime is 102020012030303. The next prime is 102020012030347. The reversal of 102020012030321 is 123030210020201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102020012030321 - 2²⁶ = 102019944921457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102020012030321.

It is not an unprimeable number, because it can be changed into a prime (102020012000321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662467610510 + ... + 662467610663.

It is an arithmetic number, because the mean of its divisors is an integer number (15899222654088).

Almost surely, 2^{102020012030321} is an apocalyptic number.

102020012030321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102020012030321 is a deficient number, since it is larger than the sum of its proper divisors (25173769202383).

102020012030321 is a wasteful number, since it uses less digits than its factorization.

102020012030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324935221191.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102020012030321 its reverse (123030210020201), we get a palindrome (225050222050522).

The spelling of 102020012030321 in words is "one hundred two trillion, twenty billion, twelve million, thirty thousand, three hundred twenty-one".