1200520319 has 2 divisors, whose sum is σ = 1200520320. Its totient is φ = 1200520318.

The previous prime is 1200520273. The next prime is 1200520357. The reversal of 1200520319 is 9130250021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200520319 - 2⁸ = 1200520063 is a prime.

It is a super-2 number, since 2×1200520319² = 2882498072663723522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200520294 and 1200520303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200522319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600260159 + 600260160.

It is an arithmetic number, because the mean of its divisors is an integer number (600260160).

Almost surely, 2^1200520319 is an apocalyptic number.

1200520319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200520319 is an equidigital number, since it uses as much as digits as its factorization.

1200520319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1200520319 is about 34648.5254953223. The cubic root of 1200520319 is about 1062.8121362792.

The spelling of 1200520319 in words is "one billion, two hundred million, five hundred twenty thousand, three hundred nineteen".