1201442001523 has 8 divisors (see below), whose sum is σ = 1202385542400. Its totient is φ = 1200498584520.

The previous prime is 1201442001433. The next prime is 1201442001533. The reversal of 1201442001523 is 3251002441021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201442001523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201442001533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31725786 + ... + 31763632.

It is an arithmetic number, because the mean of its divisors is an integer number (150298192800).

Almost surely, 2^{1201442001523} is an apocalyptic number.

1201442001523 is a deficient number, since it is larger than the sum of its proper divisors (943540877).

1201442001523 is a wasteful number, since it uses less digits than its factorization.

1201442001523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61937.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1201442001523 its reverse (3251002441021), we get a palindrome (4452444442544).

The spelling of 1201442001523 in words is "one trillion, two hundred one billion, four hundred forty-two million, one thousand, five hundred twenty-three".