1202133523 has 4 divisors (see below), whose sum is σ = 1227710880. Its totient is φ = 1176556168.

The previous prime is 1202133521. The next prime is 1202133539. The reversal of 1202133523 is 3253312021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3253312021 = 7129 ⋅456349.

It is a cyclic number.

It is not a de Polignac number, because 1202133523 - 2¹ = 1202133521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202133494 and 1202133503.

It is not an unprimeable number, because it can be changed into a prime (1202133521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12788608 + ... + 12788701.

It is an arithmetic number, because the mean of its divisors is an integer number (306927720).

Almost surely, 2^1202133523 is an apocalyptic number.

1202133523 is a deficient number, since it is larger than the sum of its proper divisors (25577357).

1202133523 is an equidigital number, since it uses as much as digits as its factorization.

1202133523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25577356.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1202133523 is about 34671.7972277181. The cubic root of 1202133523 is about 1063.2879758979.

Adding to 1202133523 its reverse (3253312021), we get a palindrome (4455445544).

The spelling of 1202133523 in words is "one billion, two hundred two million, one hundred thirty-three thousand, five hundred twenty-three".