1320020100203 has 8 divisors (see below), whose sum is σ = 1508623549440. Its totient is φ = 1131423938280.

The previous prime is 1320020100199. The next prime is 1320020100221. The reversal of 1320020100203 is 3020010200231.

It is a happy number.

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 1320020100203 - 2² = 1320020100199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320020100253) 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, 1427993 + ... + 2163146.

It is an arithmetic number, because the mean of its divisors is an integer number (188577943680).

Almost surely, 2^{1320020100203} is an apocalyptic number.

1320020100203 is a deficient number, since it is larger than the sum of its proper divisors (188603449237).

1320020100203 is an equidigital number, since it uses as much as digits as its factorization.

1320020100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643657.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1320020100203 its reverse (3020010200231), we get a palindrome (4340030300434).

The spelling of 1320020100203 in words is "one trillion, three hundred twenty billion, twenty million, one hundred thousand, two hundred three".