1201501723 has 2 divisors, whose sum is σ = 1201501724. Its totient is φ = 1201501722.

The previous prime is 1201501709. The next prime is 1201501733. The reversal of 1201501723 is 3271051021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201501723 - 2⁹ = 1201501211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201501694 and 1201501703.

It is not a weakly prime, because it can be changed into another prime (1201501733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600750861 + 600750862.

It is an arithmetic number, because the mean of its divisors is an integer number (600750862).

Almost surely, 2^1201501723 is an apocalyptic number.

1201501723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201501723 is an equidigital number, since it uses as much as digits as its factorization.

1201501723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1201501723 is about 34662.6848786992. The cubic root of 1201501723 is about 1063.1016674017.

Adding to 1201501723 its reverse (3271051021), we get a palindrome (4472552744).

The spelling of 1201501723 in words is "one billion, two hundred one million, five hundred one thousand, seven hundred twenty-three".