1200681431 has 2 divisors, whose sum is σ = 1200681432. Its totient is φ = 1200681430.

The previous prime is 1200681409. The next prime is 1200681439. The reversal of 1200681431 is 1341860021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200681431 is a prime.

It is a super-2 number, since 2×1200681431² = 2883271797496415522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200681431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200681439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600340715 + 600340716.

It is an arithmetic number, because the mean of its divisors is an integer number (600340716).

Almost surely, 2^1200681431 is an apocalyptic number.

1200681431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200681431 is an equidigital number, since it uses as much as digits as its factorization.

1200681431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1200681431 is about 34650.8503647457. The cubic root of 1200681431 is about 1062.8596779234.

The spelling of 1200681431 in words is "one billion, two hundred million, six hundred eighty-one thousand, four hundred thirty-one".