121202434043461 has 8 divisors (see below), whose sum is σ = 128676042583704. Its totient is φ = 113767053680640.

The previous prime is 121202434043447. The next prime is 121202434043479. The reversal of 121202434043461 is 164340434202121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32604454020961 + 88597980022500 = 5710031^2 + 9412650^2 .

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 121202434043461 - 2¹¹ = 121202434041413 is a prime.

It is a super-3 number, since 3×121202434043461³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121202434043461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202434043861) 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, 9557037820 + ... + 9557050501.

It is an arithmetic number, because the mean of its divisors is an integer number (16084505322963).

Almost surely, 2^{121202434043461} is an apocalyptic number.

It is an amenable number.

121202434043461 is a deficient number, since it is larger than the sum of its proper divisors (7473608540243).

121202434043461 is a wasteful number, since it uses less digits than its factorization.

121202434043461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19114088711.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 121202434043461 its reverse (164340434202121), we get a palindrome (285542868245582).

The spelling of 121202434043461 in words is "one hundred twenty-one trillion, two hundred two billion, four hundred thirty-four million, forty-three thousand, four hundred sixty-one".