121230542613 has 16 divisors (see below), whose sum is σ = 171261487296. Its totient is φ = 76016229120.

The previous prime is 121230542597. The next prime is 121230542633. The reversal of 121230542613 is 316245032121.

It is not a de Polignac number, because 121230542613 - 2⁴ = 121230542597 is a prime.

It is a super-3 number, since 3×121230542613³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230542633) 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, 702718 + ... + 858063.

It is an arithmetic number, because the mean of its divisors is an integer number (10703842956).

Almost surely, 2^121230542613 is an apocalyptic number.

It is an amenable number.

121230542613 is a deficient number, since it is larger than the sum of its proper divisors (50030944683).

121230542613 is a wasteful number, since it uses less digits than its factorization.

121230542613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562324.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 121230542613 its reverse (316245032121), we get a palindrome (437475574734).

The spelling of 121230542613 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred forty-two thousand, six hundred thirteen".