1200020330031 has 4 divisors (see below), whose sum is σ = 1600027106712. Its totient is φ = 800013553352.

The previous prime is 1200020329957. The next prime is 1200020330051. The reversal of 1200020330031 is 1300330200021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200020330031 - 2¹¹ = 1200020327983 is a prime.

It is a super-2 number, since 2×1200020330031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200020330051) 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, 200003388336 + ... + 200003388341.

It is an arithmetic number, because the mean of its divisors is an integer number (400006776678).

Almost surely, 2^{1200020330031} is an apocalyptic number.

1200020330031 is a deficient number, since it is larger than the sum of its proper divisors (400006776681).

1200020330031 is an equidigital number, since it uses as much as digits as its factorization.

1200020330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400006776680.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 1200020330031 its reverse (1300330200021), we get a palindrome (2500350530052).

The spelling of 1200020330031 in words is "one trillion, two hundred billion, twenty million, three hundred thirty thousand, thirty-one".