1020210323201 has 8 divisors (see below), whose sum is σ = 1087472514600. Its totient is φ = 953753667328.

The previous prime is 1020210323191. The next prime is 1020210323221. The reversal of 1020210323201 is 1023230120201.

It can be written as a sum of positive squares in 4 ways, for example, as 19562218225 + 1000648104976 = 139865^2 + 1000324^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020210323201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 1020210323201.

It is not an unprimeable number, because it can be changed into a prime (1020210323221) 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, 201381266 + ... + 201386331.

It is an arithmetic number, because the mean of its divisors is an integer number (135934064325).

Almost surely, 2^{1020210323201} is an apocalyptic number.

It is an amenable number.

1020210323201 is a deficient number, since it is larger than the sum of its proper divisors (67262191399).

1020210323201 is a wasteful number, since it uses less digits than its factorization.

1020210323201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402767763.

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

Adding to 1020210323201 its reverse (1023230120201), we get a palindrome (2043440443402).

The spelling of 1020210323201 in words is "one trillion, twenty billion, two hundred ten million, three hundred twenty-three thousand, two hundred one".