121312473737 has 8 divisors (see below), whose sum is σ = 149307660096. Its totient is φ = 95983495632.

The previous prime is 121312473649. The next prime is 121312473749. The reversal of 121312473737 is 737374213121.

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 121312473737 - 2⁸ = 121312473481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121312473694 and 121312473703.

It is not an unprimeable number, because it can be changed into a prime (121312473787) 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, 666551963 + ... + 666552144.

It is an arithmetic number, because the mean of its divisors is an integer number (18663457512).

Almost surely, 2^121312473737 is an apocalyptic number.

It is an amenable number.

121312473737 is a deficient number, since it is larger than the sum of its proper divisors (27995186359).

121312473737 is a wasteful number, since it uses less digits than its factorization.

121312473737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333104127.

The product of its digits is 148176, while the sum is 41.

Adding to 121312473737 its reverse (737374213121), we get a palindrome (858686686858).

The spelling of 121312473737 in words is "one hundred twenty-one billion, three hundred twelve million, four hundred seventy-three thousand, seven hundred thirty-seven".