121629064309 has 4 divisors (see below), whose sum is σ = 121630252320. Its totient is φ = 121627876300.

The previous prime is 121629064303. The next prime is 121629064339. The reversal of 121629064309 is 903460926121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121629064309 - 2¹³ = 121629056117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121629064303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424267 + ... + 650584.

It is an arithmetic number, because the mean of its divisors is an integer number (30407563080).

Almost surely, 2^121629064309 is an apocalyptic number.

It is an amenable number.

121629064309 is a deficient number, since it is larger than the sum of its proper divisors (1188011).

121629064309 is a wasteful number, since it uses less digits than its factorization.

121629064309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188010.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 121629064309 in words is "one hundred twenty-one billion, six hundred twenty-nine million, sixty-four thousand, three hundred nine".