29345660121 has 4 divisors (see below), whose sum is σ = 39127546832. Its totient is φ = 19563773412.

The previous prime is 29345660119. The next prime is 29345660129. The reversal of 29345660121 is 12106654392.

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 not a de Polignac number, because 29345660121 - 2¹ = 29345660119 is a prime.

It is a super-2 number, since 2×29345660121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 29345660121.

It is not an unprimeable number, because it can be changed into a prime (29345660129) 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 3 ways as a sum of consecutive naturals, for example, 4890943351 + ... + 4890943356.

It is an arithmetic number, because the mean of its divisors is an integer number (9781886708).

Almost surely, 2^29345660121 is an apocalyptic number.

It is an amenable number.

29345660121 is a deficient number, since it is larger than the sum of its proper divisors (9781886711).

29345660121 is an equidigital number, since it uses as much as digits as its factorization.

29345660121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781886710.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 29345660121 in words is "twenty-nine billion, three hundred forty-five million, six hundred sixty thousand, one hundred twenty-one".