121121023212123 has 8 divisors (see below), whose sum is σ = 176176033763136. Its totient is φ = 73406680734600.

The previous prime is 121121023212103. The next prime is 121121023212157. The reversal of 121121023212123 is 321212320121121.

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

It is not a de Polignac number, because 121121023212123 - 2⁹ = 121121023211611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121121023212093 and 121121023212102.

It is not an unprimeable number, because it can be changed into a prime (121121023212103) 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, 1835167018333 + ... + 1835167018398.

It is an arithmetic number, because the mean of its divisors is an integer number (22022004220392).

Almost surely, 2^{121121023212123} is an apocalyptic number.

121121023212123 is a deficient number, since it is larger than the sum of its proper divisors (55055010551013).

121121023212123 is a wasteful number, since it uses less digits than its factorization.

121121023212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670334036745.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 121121023212123 its reverse (321212320121121), we get a palindrome (442333343333244).

The spelling of 121121023212123 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twenty-three million, two hundred twelve thousand, one hundred twenty-three".