121031012123121 has 8 divisors (see below), whose sum is σ = 163783260186784. Its totient is φ = 79483052737440.

The previous prime is 121031012123117. The next prime is 121031012123123. The reversal of 121031012123121 is 121321210130121.

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

It is not a de Polignac number, because 121031012123121 - 2² = 121031012123117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121031012123123) 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, 301072169260 + ... + 301072169661.

It is an arithmetic number, because the mean of its divisors is an integer number (20472907523348).

Almost surely, 2^{121031012123121} is an apocalyptic number.

It is an amenable number.

121031012123121 is a deficient number, since it is larger than the sum of its proper divisors (42752248063663).

121031012123121 is an equidigital number, since it uses as much as digits as its factorization.

121031012123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602144338991.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 121031012123121 its reverse (121321210130121), we get a palindrome (242352222253242).

The spelling of 121031012123121 in words is "one hundred twenty-one trillion, thirty-one billion, twelve million, one hundred twenty-three thousand, one hundred twenty-one".