1200122100123 has 8 divisors (see below), whose sum is σ = 1651780955136. Its totient is φ = 774272322600.

The previous prime is 1200122100103. The next prime is 1200122100139. The reversal of 1200122100123 is 3210012210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200122100123 - 2⁹ = 1200122099611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200122100103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6452269263 + ... + 6452269448.

It is an arithmetic number, because the mean of its divisors is an integer number (206472619392).

Almost surely, 2^{1200122100123} is an apocalyptic number.

1200122100123 is a deficient number, since it is larger than the sum of its proper divisors (451658855013).

1200122100123 is a wasteful number, since it uses less digits than its factorization.

1200122100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12904538745.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1200122100123 its reverse (3210012210021), we get a palindrome (4410134310144).

The spelling of 1200122100123 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-three".