1203540071 has 2 divisors, whose sum is σ = 1203540072. Its totient is φ = 1203540070.

The previous prime is 1203540053. The next prime is 1203540073. The reversal of 1203540071 is 1700453021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203540071 is a prime.

It is a super-3 number, since 3×1203540071³ (a number of 28 digits) contains 333 as substring.

Together with 1203540073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203540073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601770035 + 601770036.

It is an arithmetic number, because the mean of its divisors is an integer number (601770036).

Almost surely, 2^1203540071 is an apocalyptic number.

1203540071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203540071 is an equidigital number, since it uses as much as digits as its factorization.

1203540071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1203540071 is about 34692.0750460390. The cubic root of 1203540071 is about 1063.7025118414.

Adding to 1203540071 its reverse (1700453021), we get a palindrome (2903993092).

The spelling of 1203540071 in words is "one billion, two hundred three million, five hundred forty thousand, seventy-one".