121302560461 has 8 divisors (see below), whose sum is σ = 128441330424. Its totient is φ = 114164160000.

The previous prime is 121302560437. The next prime is 121302560479. The reversal of 121302560461 is 164065203121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9566796100 + 111735764361 = 97810^2 + 334269^2 .

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 121302560461 - 2³¹ = 119155076813 is a prime.

It is a super-2 number, since 2×121302560461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302560161) 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, 870151 + ... + 999883.

It is an arithmetic number, because the mean of its divisors is an integer number (16055166303).

Almost surely, 2^121302560461 is an apocalyptic number.

It is an amenable number.

121302560461 is a deficient number, since it is larger than the sum of its proper divisors (7138769963).

121302560461 is a wasteful number, since it uses less digits than its factorization.

121302560461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184751.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 121302560461 its reverse (164065203121), we get a palindrome (285367763582).

The spelling of 121302560461 in words is "one hundred twenty-one billion, three hundred two million, five hundred sixty thousand, four hundred sixty-one".