1201523011372 has 12 divisors (see below), whose sum is σ = 2116777118400. Its totient is φ = 596729548976.

The previous prime is 1201523011369. The next prime is 1201523011511. The reversal of 1201523011372 is 2731103251021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201523011372.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007988508 + ... + 1007989699.

It is an arithmetic number, because the mean of its divisors is an integer number (176398093200).

Almost surely, 2^{1201523011372} is an apocalyptic number.

It is an amenable number.

1201523011372 is a deficient number, since it is larger than the sum of its proper divisors (915254107028).

1201523011372 is a wasteful number, since it uses less digits than its factorization.

1201523011372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015978360 (or 2015978358 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 1201523011372 its reverse (2731103251021), we get a palindrome (3932626262393).

The spelling of 1201523011372 in words is "one trillion, two hundred one billion, five hundred twenty-three million, eleven thousand, three hundred seventy-two".