1201522313 has 2 divisors, whose sum is σ = 1201522314. Its totient is φ = 1201522312.

The previous prime is 1201522303. The next prime is 1201522319. The reversal of 1201522313 is 3132251021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845181184 + 356341129 = 29072^2 + 18877^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201522313 - 2⁶ = 1201522249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201522319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600761156 + 600761157.

It is an arithmetic number, because the mean of its divisors is an integer number (600761157).

Almost surely, 2^1201522313 is an apocalyptic number.

It is an amenable number.

1201522313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201522313 is an equidigital number, since it uses as much as digits as its factorization.

1201522313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1201522313 is about 34662.9818826944. The cubic root of 1201522313 is about 1063.1077401183.

Adding to 1201522313 its reverse (3132251021), we get a palindrome (4333773334).

The spelling of 1201522313 in words is "one billion, two hundred one million, five hundred twenty-two thousand, three hundred thirteen".