121135437607 has 8 divisors (see below), whose sum is σ = 122068889712. Its totient is φ = 120202118400.

The previous prime is 121135437601. The next prime is 121135437617. The reversal of 121135437607 is 706734531121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121135437607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121135437607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121135437601) 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, 2588557 + ... + 2634937.

It is an arithmetic number, because the mean of its divisors is an integer number (15258611214).

Almost surely, 2^121135437607 is an apocalyptic number.

121135437607 is a deficient number, since it is larger than the sum of its proper divisors (933452105).

121135437607 is a wasteful number, since it uses less digits than its factorization.

121135437607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66449.

The product of its (nonzero) digits is 105840, while the sum is 40.

Adding to 121135437607 its reverse (706734531121), we get a palindrome (827869968728).

The spelling of 121135437607 in words is "one hundred twenty-one billion, one hundred thirty-five million, four hundred thirty-seven thousand, six hundred seven".