1121000144123 has 16 divisors (see below), whose sum is σ = 1191251880000. Its totient is φ = 1052610218880.

The previous prime is 1121000144119. The next prime is 1121000144129. The reversal of 1121000144123 is 3214410001211.

It is a cyclic number.

It is not a de Polignac number, because 1121000144123 - 2² = 1121000144119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121000144095 and 1121000144104.

It is not an unprimeable number, because it can be changed into a prime (1121000144129) 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, 70748 + ... + 1499001.

It is an arithmetic number, because the mean of its divisors is an integer number (74453242500).

Almost surely, 2^{1121000144123} is an apocalyptic number.

1121000144123 is a deficient number, since it is larger than the sum of its proper divisors (70251735877).

1121000144123 is a wasteful number, since it uses less digits than its factorization.

1121000144123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570342.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1121000144123 its reverse (3214410001211), we get a palindrome (4335410145334).

The spelling of 1121000144123 in words is "one trillion, one hundred twenty-one billion, one hundred forty-four thousand, one hundred twenty-three".