121100113230123 has 32 divisors (see below), whose sum is σ = 164000716333056. Its totient is φ = 79468305304608.

The previous prime is 121100113230113. The next prime is 121100113230143. The reversal of 121100113230123 is 321032311001121.

It is not a de Polignac number, because 121100113230123 - 2¹⁶ = 121100113164587 is a prime.

It is a super-2 number, since 2×121100113230123² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121100113230123.

It is not an unprimeable number, because it can be changed into a prime (121100113230113) 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, 1476663586 + ... + 1476745592.

It is an arithmetic number, because the mean of its divisors is an integer number (5125022385408).

Almost surely, 2^{121100113230123} is an apocalyptic number.

121100113230123 is a deficient number, since it is larger than the sum of its proper divisors (42900603102933).

121100113230123 is a wasteful number, since it uses less digits than its factorization.

121100113230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87543.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121100113230123 its reverse (321032311001121), we get a palindrome (442132424231244).

The spelling of 121100113230123 in words is "one hundred twenty-one trillion, one hundred billion, one hundred thirteen million, two hundred thirty thousand, one hundred twenty-three".