121000110123123 has 48 divisors (see below), whose sum is σ = 217993578566400. Its totient is φ = 62831637080640.

The previous prime is 121000110123083. The next prime is 121000110123131. The reversal of 121000110123123 is 321321011000121.

It is not a de Polignac number, because 121000110123123 - 2¹³ = 121000110114931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121000110123096 and 121000110123105.

It is not an unprimeable number, because it can be changed into a prime (121000110123023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33798828 + ... + 37207001.

It is an arithmetic number, because the mean of its divisors is an integer number (4541532886800).

Almost surely, 2^{121000110123123} is an apocalyptic number.

121000110123123 is a deficient number, since it is larger than the sum of its proper divisors (96993468443277).

121000110123123 is a wasteful number, since it uses less digits than its factorization.

121000110123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71008312 (or 71008309 counting only the distinct ones).

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

Adding to 121000110123123 its reverse (321321011000121), we get a palindrome (442321121123244).

The spelling of 121000110123123 in words is "one hundred twenty-one trillion, one hundred ten million, one hundred twenty-three thousand, one hundred twenty-three".