1201132111323 has 32 divisors (see below), whose sum is σ = 1613516516352. Its totient is φ = 794779776000.

The previous prime is 1201132111307. The next prime is 1201132111331. The reversal of 1201132111323 is 3231112311021.

It is not a de Polignac number, because 1201132111323 - 2⁴ = 1201132111307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201132111323.

It is not an unprimeable number, because it can be changed into a prime (1201132111363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266147115 + ... + 266151627.

It is an arithmetic number, because the mean of its divisors is an integer number (50422391136).

Almost surely, 2^{1201132111323} is an apocalyptic number.

1201132111323 is a deficient number, since it is larger than the sum of its proper divisors (412384405029).

1201132111323 is a wasteful number, since it uses less digits than its factorization.

1201132111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1201132111323 its reverse (3231112311021), we get a palindrome (4432244422344).

The spelling of 1201132111323 in words is "one trillion, two hundred one billion, one hundred thirty-two million, one hundred eleven thousand, three hundred twenty-three".