101200120130321 has 4 divisors (see below), whose sum is σ = 102419398686192. Its totient is φ = 99980841574452.

The previous prime is 101200120130297. The next prime is 101200120130323. The reversal of 101200120130321 is 123031021002101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101200120130321 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 101200120130321.

It is not an unprimeable number, because it can be changed into a prime (101200120130323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609639277811 + ... + 609639277976.

It is an arithmetic number, because the mean of its divisors is an integer number (25604849671548).

Almost surely, 2^{101200120130321} is an apocalyptic number.

It is an amenable number.

101200120130321 is a deficient number, since it is larger than the sum of its proper divisors (1219278555871).

101200120130321 is an equidigital number, since it uses as much as digits as its factorization.

101200120130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219278555870.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101200120130321 its reverse (123031021002101), we get a palindrome (224231141132422).

The spelling of 101200120130321 in words is "one hundred one trillion, two hundred billion, one hundred twenty million, one hundred thirty thousand, three hundred twenty-one".