121301003121 has 16 divisors (see below), whose sum is σ = 163967040384. Its totient is φ = 79751378304.

The previous prime is 121301003113. The next prime is 121301003149. The reversal of 121301003121 is 121300103121.

It is a happy number.

It is not a de Polignac number, because 121301003121 - 2³ = 121301003113 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121301003121.

It is not an unprimeable number, because it can be changed into a prime (121301003101) 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, 2712475 + ... + 2756831.

It is an arithmetic number, because the mean of its divisors is an integer number (10247940024).

Almost surely, 2^121301003121 is an apocalyptic number.

It is an amenable number.

121301003121 is a deficient number, since it is larger than the sum of its proper divisors (42666037263).

121301003121 is a wasteful number, since it uses less digits than its factorization.

121301003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56920.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121301003121 its reverse (121300103121), we get a palindrome (242601106242).

The spelling of 121301003121 in words is "one hundred twenty-one billion, three hundred one million, three thousand, one hundred twenty-one".