1200310101123 has 32 divisors (see below), whose sum is σ = 1974380313600. Its totient is φ = 633447002496.

The previous prime is 1200310101101. The next prime is 1200310101161. The reversal of 1200310101123 is 3211010130021.

It is a happy number.

It is not a de Polignac number, because 1200310101123 - 2⁸ = 1200310100867 is a prime.

It is a super-2 number, since 2×1200310101123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200310101323) 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, 42832788 + ... + 42860801.

It is an arithmetic number, because the mean of its divisors is an integer number (61699384800).

Almost surely, 2^{1200310101123} is an apocalyptic number.

1200310101123 is a deficient number, since it is larger than the sum of its proper divisors (774070212477).

1200310101123 is a wasteful number, since it uses less digits than its factorization.

1200310101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85693651.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1200310101123 its reverse (3211010130021), we get a palindrome (4411320231144).

The spelling of 1200310101123 in words is "one trillion, two hundred billion, three hundred ten million, one hundred one thousand, one hundred twenty-three".