1200231303331 has 2 divisors, whose sum is σ = 1200231303332. Its totient is φ = 1200231303330.

The previous prime is 1200231303329. The next prime is 1200231303391. The reversal of 1200231303331 is 1333031320021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200231303331 - 2¹ = 1200231303329 is a prime.

It is a super-2 number, since 2×1200231303331² (a number of 25 digits) contains 22 as substring.

Together with 1200231303329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1200231303311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600115651665 + 600115651666.

It is an arithmetic number, because the mean of its divisors is an integer number (600115651666).

Almost surely, 2^{1200231303331} is an apocalyptic number.

1200231303331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200231303331 is an equidigital number, since it uses as much as digits as its factorization.

1200231303331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1200231303331 its reverse (1333031320021), we get a palindrome (2533262623352).

The spelling of 1200231303331 in words is "one trillion, two hundred billion, two hundred thirty-one million, three hundred three thousand, three hundred thirty-one".