121003121213 has 8 divisors (see below), whose sum is σ = 137169530400. Its totient is φ = 105816494448.

The previous prime is 121003121207. The next prime is 121003121287. The reversal of 121003121213 is 312121300121.

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

It is a cyclic number.

It is not a de Polignac number, because 121003121213 - 2³⁶ = 52283644477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121003121191 and 121003121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003121293) 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, 244945343 + ... + 244945836.

It is an arithmetic number, because the mean of its divisors is an integer number (17146191300).

Almost surely, 2^121003121213 is an apocalyptic number.

121003121213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121003121213 is a deficient number, since it is larger than the sum of its proper divisors (16166409187).

121003121213 is a wasteful number, since it uses less digits than its factorization.

121003121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489891211.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121003121213 its reverse (312121300121), we get a palindrome (433124421334).

It can be divided in two parts, 12100 and 3121213, that added together give a palindrome (3133313).

The spelling of 121003121213 in words is "one hundred twenty-one billion, three million, one hundred twenty-one thousand, two hundred thirteen".