1201300021 has 8 divisors (see below), whose sum is σ = 1224310464. Its totient is φ = 1178508000.

The previous prime is 1201300013. The next prime is 1201300027. The reversal of 1201300021 is 1200031021.

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 1201300021 - 2³ = 1201300013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201299980 and 1201300007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201300027) 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, 43480 + ... + 65521.

It is an arithmetic number, because the mean of its divisors is an integer number (153038808).

Almost surely, 2^1201300021 is an apocalyptic number.

It is an amenable number.

1201300021 is a deficient number, since it is larger than the sum of its proper divisors (23010443).

1201300021 is a wasteful number, since it uses less digits than its factorization.

1201300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109211.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1201300021 is about 34659.7752589367. The cubic root of 1201300021 is about 1063.0421747050.

Adding to 1201300021 its reverse (1200031021), we get a palindrome (2401331042).

The spelling of 1201300021 in words is "one billion, two hundred one million, three hundred thousand, twenty-one".