1201101211323 has 64 divisors (see below), whose sum is σ = 1943366261760. Its totient is φ = 728702956800.

The previous prime is 1201101211151. The next prime is 1201101211367. The reversal of 1201101211323 is 3231121011021.

1201101211323 is a `hidden beast` number, since 1 + 20 + 110 + 1 + 211 + 323 = 666.

It is not a de Polignac number, because 1201101211323 - 2¹² = 1201101207227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201101211296 and 1201101211305.

It is not an unprimeable number, because it can be changed into a prime (1201101251323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69455308 + ... + 69472598.

It is an arithmetic number, because the mean of its divisors is an integer number (30365097840).

Almost surely, 2^{1201101211323} is an apocalyptic number.

1201101211323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201101211323 is a deficient number, since it is larger than the sum of its proper divisors (742265050437).

1201101211323 is a wasteful number, since it uses less digits than its factorization.

1201101211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20097 (or 20091 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1201101211323 its reverse (3231121011021), we get a palindrome (4432222222344).

The spelling of 1201101211323 in words is "one trillion, two hundred one billion, one hundred one million, two hundred eleven thousand, three hundred twenty-three".