121560602253 has 8 divisors (see below), whose sum is σ = 162096782400. Its totient is φ = 81032411808.

The previous prime is 121560602243. The next prime is 121560602263. The reversal of 121560602253 is 352206065121.

It is an interprime number because it is at equal distance from previous prime (121560602243) and next prime (121560602263).

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

It is not a de Polignac number, because 121560602253 - 2⁵ = 121560602221 is a prime.

It is a super-2 number, since 2×121560602253² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121560602213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961833 + ... + 2022846.

It is an arithmetic number, because the mean of its divisors is an integer number (20262097800).

Almost surely, 2^121560602253 is an apocalyptic number.

It is an amenable number.

121560602253 is a deficient number, since it is larger than the sum of its proper divisors (40536180147).

121560602253 is a wasteful number, since it uses less digits than its factorization.

121560602253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994851.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 121560602253 its reverse (352206065121), we get a palindrome (473766667374).

The spelling of 121560602253 in words is "one hundred twenty-one billion, five hundred sixty million, six hundred two thousand, two hundred fifty-three".