1202100011123 has 16 divisors (see below), whose sum is σ = 1330086773760. Its totient is φ = 1077274598400.

The previous prime is 1202100011111. The next prime is 1202100011173. The reversal of 1202100011123 is 3211100012021.

It is not a de Polignac number, because 1202100011123 - 2⁶ = 1202100011059 is a prime.

It is a super-2 number, since 2×1202100011123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202100011098 and 1202100011107.

It is not an unprimeable number, because it can be changed into a prime (1202100011173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547790 + ... + 1644467.

It is an arithmetic number, because the mean of its divisors is an integer number (83130423360).

Almost surely, 2^{1202100011123} is an apocalyptic number.

1202100011123 is a deficient number, since it is larger than the sum of its proper divisors (127986762637).

1202100011123 is a wasteful number, since it uses less digits than its factorization.

1202100011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192978.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1202100011123 its reverse (3211100012021), we get a palindrome (4413200023144).

The spelling of 1202100011123 in words is "one trillion, two hundred two billion, one hundred million, eleven thousand, one hundred twenty-three".