29424036121 has 4 divisors (see below), whose sum is σ = 29424545332. Its totient is φ = 29423526912.

The previous prime is 29424036119. The next prime is 29424036149. The reversal of 29424036121 is 12163042492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1595123721 + 27828912400 = 39939^2 + 166820^2 .

It is a cyclic number.

It is not a de Polignac number, because 29424036121 - 2¹ = 29424036119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29424016121) 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, 154920 + ... + 287833.

It is an arithmetic number, because the mean of its divisors is an integer number (7356136333).

Almost surely, 2^29424036121 is an apocalyptic number.

It is an amenable number.

29424036121 is a deficient number, since it is larger than the sum of its proper divisors (509211).

29424036121 is an equidigital number, since it uses as much as digits as its factorization.

29424036121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509210.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 29424036121 in words is "twenty-nine billion, four hundred twenty-four million, thirty-six thousand, one hundred twenty-one".